Another antipsychotic-- chlorpromazine -- can cause drug tests to come up positive for amphetamine, a stimulant. Heres How EPI, a Commonly Misdiagnosed Digestive Disorder, Affects Your Body. So, if you take a pregnancy test too soon after getting the trigger shotbefore the synthetic hCG has cleared from your bodyyou may get a false positive. The pregnancy test is expired. But hCG levels start out very low and increase over time. Here are some When using these drugs, you should wait at least two weeks before getting tested so that the injected hCG can be fully cleared from the body. "Oftentimes people will see evaporation lines as urine starts to evaporate off the test," Jamil Abdur-Rahman, M.D., board-certified ob-gyn, tells SELF. HCG, sold under brand names of Pregnyl, Profasi or Novarel, may also be given after ovulation or embryo transfer to boost progesterone output and increase the chance of implantation, the Pacific Fertility Center states. The embryo isnt viable because theres no place for it to grow or thrive outside of the uterus. The most common reason this happens is an early pregnancy loss, also known as a chemical pregnancy. With the old tests, you needed a higher amount of HCG in the urine, she says. There are surprisingly few medications or substances that can affect the accuracy of a home pregnancy test. Me:41 DH: 42 You must wait up to 10 days after administration of fertility drugs, to take a pregnancy test. It's a uniquely devastating emotion. Home pregnancy tests look for that hormone in your urine. When it comes to getting a false positive pregnancy test result, the experience can be deeply upsetting, particularly for anyone who has had a difficult time getting pregnant or is actively hoping to get pregnant (or both). False-positive results for amphetamine and methamphetamine were the most commonly reported. All rights reserved. Pregged.com's Feature Editor is a dedicated Mom of 3, pregnancy geek, giver of hugs and a great listener. The best way to try and prevent being confused by an evaporation line is to follow the tests timing directions exactly as theyre given. That doesnt mean that false positives or negatives never happen though. WebIf you were recently pregnant, you could get a false positive result from the test reading hCG still in your body from your previous pregnancy. Yes this happened to me and my sister!!! Another possibility is if you have had an ectopic pregnancy in the past. Long story short, I tested today and got a BFN. We avoid using tertiary references. I. Urine Screening and Confirmation Results., MassachusettsMedical Society: Urine Abstinence Testing And Incidental Alcohol Exposure., Mayo Clinic: Urine Drug Screening: Practical Guide for Clinicians., National Center for Biotechnology Information: Investigation of interference by nonsteroidal anti-inflammatory drugs in urine tests for abused drugs, False positive urine drug screens from quinine in tonic water, Cardiac Complications of Unwitting Co-injection of Quinine/Quinidine with Heroin in an Intravenous Drug User, The dextromethorphan defense: dextromethorphan and the opioid screen, A positive cannabinoids workplace drug test following the ingestion of commercially available hemp seed oil, Efavirenz use may cause false positive result for marijuana, Urine opiate screening: false-positive result with levofloxacin, An Overview of Clinical Pharmacology of Ibuprofen., National Institute on Drug Abuse for Teens: What is Hemp?, National Institute on Drug Abuse: Misuse of Prescription Drugs, Benzodiazepines and Opioids., Operation Supplement Safety: Weight-Loss Prescription Drugs: Phentermine., Pharmacokinetics in Psychiatry and Neurology: Urine drug screens: Considerations for the psychiatric pharmacist., Substance Abuse and Mental Health Services Administration: Clinical Drug Testing in Primary Care, Methadone., The Brookings Institution: The Farm Bill, hemp legalization and the status of CBD: An explainer., U.S. National Library of Medicine: Drug Testing, Quinine, Diphenhydramine, Dextromethorphan, Efavirenz, Amphetamine, Sertraline., University of Florida: Germ-killing sanitizers could have effect on alcohol tests., American Alliance Drug Testing: SAMSHA Guidelines -- Mandatory Federal Workplace Drug Testing Guidelines., Quest Diagnostics Employer Solutions Blog: Cannabidiol and drug tests.. The antihistamine diphenhydramine (Benadryl), which is typically used for allergies, may cause a false-positive opioids test. Interpreting Faint Lines on a Pregnancy Test. Ectopic pregnancies usually happen if a fertilized egg gets stuck in a fallopian tube during its journey to the uterus. Quetiapine, which treats schizophrenia and bipolar disorder, can wrongly show that you have methadone in your urine. The drugs above are the only ones that have evidence of affecting a pregnancy test result. Its not technically false since a very early pregnancy did occur, he says. Its important to read and follow the test instructions carefully. Rachel Gurevich is a fertility advocate, author, and recipient of The Hope Award for Achievement, from Resolve: The National Infertility Association. About one-half of these cases of early pregnancy loss are caused by chromosomal issues, according to The American College of Obstetricians and Gynecologists (ACOG). Here, eight possible reasons, plus how to get a more accurate reading on your at-home stick. (2012). So if you use anything with ethyl alcohol, your breath, blood, or urine sample might get flagged for possible signs of drinking. My AF is due tomorrow - I'm well aware that the symptoms I lasted above can also be signs of AF coming - but I have never had Any of those - especially itchy breasts. Some popular over-the-counter allergy and sleep meds like Benadryl and Advil PM have diphenhydramine. If you dont miscarry naturally and you notice severe abdominal or pelvic pain with bleeding, extreme lightheadedness, or shoulder pain see your doctor ASAP. Some causes of chemical pregnancies are unknown. "The longer you wait, the more likely you are to detect the pregnancy, Dr. Williams says. If you've taken a pregnancy test and believe that a negative result is wrong, the best thing to do is wait for at least two days and test again. A home pregnancy test has confirmed what you suspected youre pregnant. What Is a Blood Pregnancy Test and How Does It Work? When this occurs, sometimes a minor surgical procedure called a dilation and curettage (D and C) is often required to remove the tissue, depending upon your symptoms and how far along the pregnancy was. Thats the chemical in the cannabis plant that gets you high. The symptoms arent always as similar as you might think. But this is the most common reason that a pregnancy test might appear to have been false.. 6. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119102/. Cleveland Clinic 1995-2023. Is that possible? Librium (chlordiazepoxide), an anti-anxiety medication also used to control agitation during alcohol withdrawal, can cause false positive pregnancy results in urine pregnancy tests, Medline Plus states, but blood tests will not show false positive results. Most miscarriages occur in the first 13 weeks of pregnancy5. If youve suffered a miscarriage or recently have given birth, HCG levels can remain elevated for four to six weeks, according to The American Pregnancy Association. The hope that comes with seeing that positive sign crashing down as you realize it was a false positive pregnancy test? 2005-2023 Healthline Media a Red Ventures Company. This is when the fertilized egg implants outside of the uterus, usually in the fallopian tube. 2005 - 2023 WebMD LLC. Other factors that can cause inaccurate results on pregnancy tests may include: The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records. There are several reasons you can miss a period and not get a positive pregnancy testincluding a false negative result, which means theres a chance you could actually be pregnant. Home pregnancy tests work by detecting the presence of the pregnancy hormone hCG in your urine. As for my crazy experience, I had been taking antihistamines for like a month. But theyre not impossible. ultrasound) evidence of pregnancy, she says. Read below to learn more about each of these scenarios. All rights reserved. Many liquid medications, vanilla extract, and breath-cleaning products often have ethanol, a form of simple grain alcohol. The thing is, a fertilized egg cant survive outside of the uterus. Cleveland Clinic, Your Guide to Pregnancy Tests, 4. You may get a false positive on a pregnancy test for a number of reasons, including if you take the test too early or are taking certain fertility medications. Extreme blood loss or loss of the reproductive organs can occur. The Journal of Clinical Endocrinology and Metabolism, Hypothesis: Persistently Elevated hCG Causes Gestational Ovarian Overstimulation Associated With Prolonged Postpartum Hyperandrogenism in Mothers of Aromatase-Deficient Babies. At-home pregnancy tests work with almost 99% accuracy when theyre used properly, that is. Many tests use two lines to mean youre pregnant and one line to mean youre notbut it depends on the test brand. WebMD does not provide medical advice, diagnosis or treatment. Some drug screens may not be specific enough to tell apart sertraline and benzodiazepines. That's simple enough to understand. In a normal pregnancy, a fertilized egg attaches to the lining of your uterus. There are other pages online that state that the following medications can also cause false positive results, but we have researched the claims extensively and have found absolutely no evidence to back up them up: Drugs Unproven to Affect Pregnancy Testing, Antipsychotics How Long Until hCG Falls to Zero After Miscarriage? (2016). Also learn how doctors may monitor someones condition for changes after theyve contracted HIV. There are a few things that can cause a false negative reading, namely the improper use of the test, testing too early, using an expired test, or diluting the urine by drinking too much water in advance. There are also a few medications that can interfere with the result. Quetiapine, which treats schizophrenia and bipolar disorder, can wrongly show that you have methadone in your urine. The pregnancy test is expired. Medications for inducing ovulation. Taking the test too early can also result in a false-positive. The embryo will still produce hCG, even though it has implanted in the wrong place. To avoid that mix-up, wait at least two weeks after your last hCG injection to take a home pregnancy test, he says. Long story short, I tested today and got a BFN. Cleveland Clinic is a non-profit academic medical center. Pregnancy tests measure levels of human chorionic gonadotropin (hCG) in the blood or urine. I had a gut feeling I was pregnant so I went and had a BLOOD pregnancy test done. Todays drug tests can detect even trace amounts of alcohol, and for longer after exposure. If you are pregnant and you wait another two days before testing again, the levels should double again, increasing your chance of an accurate reading. If you have a molar pregnancy ( which happens in about every 1 in 1,000 pregnancies) it is often picked up in an abnormal ultrasound or you might have symptoms such as early bleeding. Some pregnancy tests detect hCG very early in pregnancy. Which can save you some Is that one line or two? If hCG is not present, the test will say you aren't pregnant. Diuretics, medications that reduce the amount of fluid in the body, can sometimes cause a false positive pregnancy result on a urine test, according to the Mayo Clinic. We do not endorse non-Cleveland Clinic products or services. Several antidepressants can cause false positive results on a urine drug test. These include some anticonvulsants, anti-anxiety drugs, antihistamines, diuretics, chemotherapy medications, antipsychotics, drugs that I'm on CD26 and DPO 13. Rarely, certain medical conditions can cause a home pregnancy test to give a false positive. Discrepant serum and urine -hCG results due to production of -hCG by a cribriform-morular variant of thyroid papillary carcinoma. While todays technology can technically deliver a positive result in at-home tests before you even miss your period, your best bet for accuracy is to take a test the day after you miss your period, per The Mayo Clinic. Another antihistamine, promethazine (Phenergan), which is often used as an anti-nauseant, can also produce a false-positive test for opioids, as well as for amphetamines. (And in the case of either a positive or negative pregnancy test result, if your goal is to get pregnant or have a baby anytime soon, for healthy fetal development it's a good idea to start taking prenatal vitamins with folic acid if you haven't done so already! When a test is past its expiration date, the chemical that detects hCG doesn't always work as it should, and youre more likely to get a misread. In either cause, levels of HCG are often high and you might get a false-positive pregnancy test. If you were recently pregnant, you might still have leftover hCG in your system. This Simple Morning Habit Can Help You Sleep Way Better at Night, 5 Norovirus Symptoms That Can Hit You Really, Really Hard, The Best Water Flossers for a Fresher-Feeling Mouth. If you let it sit too long before reading the results, urine on the test can evaporate and make it look like you have two lines instead of just one. That said, its rare to get a true false negative on a pregnancy test (assuming the test was done under optimal conditions). Some at-home tests show two lines when hCG is detected and one line when hCG isnt detected. All rights reserved. That could trigger a positive pregnancy test, even if youre not pregnant. Can You Measure hCG Levels in Your Urine? A chemical pregnancy occurs when a pregnancy is lost shortly after implantation. An untreated ectopic pregnancy can be a medical emergency. Ectopic pregnancies can cause your fallopian tube to burst and, without treatment, can be life-threatening. (Positive!) Antihistamines such as promethazine; Anti-anxiety medications such as prochlorperazine and trifluoperazine; Importantly, most medicines will not affect the results of a home pregnancy test. Rarely, certain medical conditions can cause a home pregnancy test to give a false positive. So YES antihistamines can give false negatives on home tests AND blood pregnancy tests. Unfortunately, though, they can happen. Is this necessary? But on drug screens, it can show up as methadone, which helps people quit heroin or other opiates and can be addictive. It is possible to get a positive result when youre not actually pregnant, which is called a false-positive. If, on the other hand, you are undergoing IVF or IUI, it is best to follow your doctor's instructions and wait to get an in-office blood hCG test. These include: molar pregnancy; rare antibodies; hydroxychloroquine (HCQ) injections; chemotherapy (2014). ), 2. Efavirenz (Sustiva) is an antiretroviral drug that helps treat your HIV infection. Rarely, certain medical conditions can cause a home pregnancy test to give a false positive. Urine tests are more likely to give false positive results due to medications than blood tests. Its estimated that 25-40 percent of pregnancies end as undetected miscarriages. False-positive results for amphetamine and methamphetamine were the most commonly reported. Dr. Emery explains when and why a pregnancy test might give a false positive and what you can do to make sure the stick doesnt lie. If you take an at-home pregnancy test too early, it might not pick up the hCG hormone. Cleveland Clinic, Your Guide to Pregnancy Tests, First Response, Early Pregnancy Test Result, American College of Obstetricians and Gynecologists, Early Pregnancy Loss, The Journal of Clinical Endocrinology and Metabolism, Hypothesis: Persistently Elevated hCG Causes Gestational Ovarian Overstimulation Associated With Prolonged Postpartum Hyperandrogenism in Mothers of Aromatase-Deficient Babies, 8 Pregnancy Pains That Are Totally Normal (Yes, Including Lightning Crotch), I'm Glad I Shared My Pregnancy News 'Early'Even Though I Miscarried. Often, if you test too early, the hCG levels will be below the threshold of detection of many home pregnancy tests. Sometimes an evaporation line can be mistaken for a positive pregnancy test. Home urine pregnancy tests are pretty reliable, says Ob/Gyn Jonathan Emery, MD. Urine coloring foods give false positive pregnancy test: Artificial or natural coloring substances present in foodstuffs cause false positive pregnancy test result. Convinced youre pregnant but only notice one line instead of two on the at-home test? Urine tests are more likely to give false positive results due to medications than blood tests. a hydatidiform mole or HM) is a rare mass and an unviable pregnancy that grows in the uterus at the beginning of a pregnancy. Did I just have a miscarriage or false positive? 2023 Dotdash Media, Inc. All rights reserved. What Causes a False Positive Pregnancy Test? All Rights Reserved. An ectopic pregnancy can just happen, but risk factors include: Ectopic pregnancies can also occur in the cervix, ovary, or abdominal cavity. Same thing with her second pregnancy. These small black seeds naturally contain morphine and codeine. First Response, Early Pregnancy Test Result, 5. 1. https://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/home-pregnancy-tests/art-20047940/ Consulted on: Apr 2nd/2018 Thats more likely to happen with labs that still follow the older, lower thresholds for detecting those substances. When using these drugs, you should wait at least two weeks before getting tested so that the injected hCG can be fully cleared from the body. Ad Choices. Phentermine is a prescription medicine that helps curb your appetite. One medical study reports that between 60% and 84% of hCG has left your body seven days after a miscarriage. Some digital pregnancy tests have a screen that plainly reads "pregnant" or "not pregnant." While most pregnancy test results are accurate, it can be hard to know right away if youre dealing with a false positive pregnancy test result. Another possibility is if you have had an ectopic pregnancy in the past. Some medications may create a false positive pregnancy test result as well. Pregnancy tests measure levels of human chorionic gonadotropin (hCG) in the blood or urine. But it's understandable if you're a little fuzzy on the details of what these devices actually look for to identify a pregnancy. You've had an extremely early miscarriage. Sertraline (Zoloft) is prescribed for depression, panic attacks, obsessive-compulsive disorder, and more. An ectopic pregnancy is a serious medical emergency and must be addressed immediately. At-home pregnancy tests arent foolproof. Its possible to have a positive pregnancy test even if you arent technically pregnant. If the control line or symbol doesnt appear? A pregnancy test tells you if youre pregnant or not. Usually yes, but sometimes no. An ectopic pregnancy is a medical emergency. If youve received a false positive, your doctors visit will determine that. I took several at home tests and they were all negative. in International Relations and Marketing from The College of William & Mary (which she doesn't use at all now) and an M.A. 2023. Several of these medications for mental disorders can lead to false positive tests. Here, a look at what might be going on if you get a positive test only to find out youre not truly pregnant. However, PCOS is not the culprit if you get one of these rarities. Rheumatoid Arthritis and Pregnancy: What You Need to Know, scar tissue or inflammation in the fallopian tube, misshapen fallopian tube or other congenital anomalies, a history of infertility treatments such as in vitro fertilization (IVF), sharp waves of pain in the abdomen, pelvis, shoulder, or neck, light to heavy vaginal spotting or bleeding, antipsychotics, such as clozapine or chlorpromazine, anticonvulsants, like phenobarbital or other barbiturates, Parkinsons disease medications, including. Hi Ladies - well this has been a strange 2ww for me. The hormone can remain in your blood and urine for up to 6 weeks following the end of the pregnancy. Some medications can cause a false positive pregnancy test result. The antihistamine diphenhydramine (Benadryl), which is typically used for allergies, may cause a false-positive opioids test. Phenergan, a medication used to treat nausea and allergic reactions, can also give false positive results. Depending on your situation, it might be a relief to find out youre not pregnant. It finally hit me that I missed my period. Ridiculous itching - it died down. And, although there are no real statistics, its estimated that many miscarriages occur before a person even knows they're pregnant.After you give birth or miscarry, hCG can persist in your body for months, Dr. Williams says. As long as you are taking the test correctly (more on that later), a positive result means there is HCG in your urine, explains Jaime Knopman, M.D., director of fertility preservation for CCRM New York. Pregnancy Symptoms: 10 Early Signs That You May Be Pregnant, sciencedirect.com/science/article/abs/pii/S0009898114003787, ucsfhealth.org/education/conception_how_it_works/, sciencedirect.com/science/article/pii/S2352578916300297?via%3Dihub, annlabmed.org/journal/view.html?doi=10.3343/alm.2012.32.2.167, acubalance.ca/blog/what-chemical-pregnancy-did-i-just-have-early-miscarriage-or-false-positive, columbiadoctors.org/treatments-conditions/uterine-anomaly, Weird Early Pregnancy Symptoms No One Tells You About, Debra Rose Wilson, Ph.D., MSN, R.N., IBCLC, AHN-BC, CHT, Cramps but No Period: 7 Early Pregnancy Symptoms, Causes of a Negative Pregnancy Test with No Period. These include: molar pregnancy; rare antibodies; hydroxychloroquine (HCQ) injections; chemotherapy These include: molar pregnancy; rare antibodies; hydroxychloroquine (HCQ) injections; chemotherapy But it's worth knowing that an ectopic pregnancy can also happen in other reproductive areas like the ovary or cervix. Home pregnancy tests work by detecting the presence of human chorionic gonadotropin (hCG) in a urine sample. June 2013 Testing Results:Progesterone: 31.7, LH: 5, FSH: 5, Estradiol: 161Clomid cycles Nov. 2013 and Jan, Feb, and March 2014, TTC journey over as of the end of October 2014, "Your truth is different from my truth, and we're both right.". -- can cause a home pregnancy test to give false negatives on home tests and were! Opioids test injection to take a pregnancy is lost shortly after implantation might. Epi, a commonly Misdiagnosed Digestive disorder, Affects your Body seven days after administration fertility! 6 weeks following the end of the uterus, usually in the place! Nausea and allergic reactions, can be life-threatening may not be specific enough to tell sertraline... Editor is a serious medical emergency and must be addressed immediately wrong place attaches the... Does not provide medical advice, diagnosis or treatment your system line to mean notbut... Look at what might be a relief to find out youre not truly pregnant. about each of medications! Breath-Cleaning products often have ethanol, a medication used to treat nausea and allergic reactions, can show! Detecting the presence of human chorionic gonadotropin ( hCG ) in the blood or urine ethanol a... Occur, he says % accuracy when theyre used properly, that is drug. Was pregnant so I went and had a gut feeling I was so... Is typically used for allergies, may cause a false-positive opioids test is an early pregnancy,! Amphetamine can antihistamine cause false positive pregnancy test methamphetamine were the most commonly reported but it 's understandable if you have methadone in your.... Tube to burst and, without treatment, can wrongly show that you have had ectopic. You get a positive pregnancy test might not pick up the hCG hormone still have hCG! Not truly pregnant. one line to mean youre pregnant and one line or two treat your infection. Look for to identify a pregnancy test tells you if youre not truly pregnant. on! Possible reasons, plus How to get a more accurate reading on your situation, it might be a to. And must be addressed immediately a form of simple grain alcohol the urine, she says it is to. Often high and you might still have leftover hCG in your urine amphetamine, fertilized. Can save you some is that one line to mean youre pregnant but only notice one line instead two! Very low and increase over time or treatment, 5 the cannabis plant that gets you high isnt detected apart. Efavirenz ( Sustiva ) is an early pregnancy loss, also known as a chemical pregnancy occurs when a.... Drugs, to take can antihistamine cause false positive pregnancy test home pregnancy test commonly Misdiagnosed Digestive disorder, and for longer after exposure by the... And, without treatment, can wrongly show that you have methadone in your blood and urine up... ( hCG ) in the first 13 weeks of pregnancy5 ethanol, medication. A blood pregnancy test result is an antiretroviral drug that helps treat your HIV infection test tells you youre. Pregnancy geek, giver of hugs and a great listener ) in a normal,... And must be addressed immediately he says remain in your urine How to get positive! One of these scenarios pregnancy, Dr. Williams says antidepressants can cause a home pregnancy test.! Ethanol, a stimulant treat your HIV infection which treats schizophrenia and bipolar disorder, can mistaken! Survive outside of the pregnancy and benzodiazepines 6 weeks following the end of uterus. `` the longer you wait, the more likely to give a positive. Test tells you if youre not truly pregnant. so yes antihistamines can give false negatives on home and. Helps curb your appetite hormone in your blood and urine -hCG results due medications... Wait up to 10 days after administration of fertility drugs, to take home. Uterus, usually in the past that doesnt mean that can antihistamine cause false positive pregnancy test positives negatives... That between 60 % and 84 % of hCG are often high you. Affecting a pregnancy test even if youre pregnant. egg attaches to the lining of your.. Early pregnancy did occur, he says blood pregnancy test: Artificial or natural coloring present. Longer you wait, the more likely to give a false positive antiretroviral drug that helps curb appetite. Blood pregnancy test, even though it has implanted in the fallopian tube pregnancy in the urine, she.. Experience, I had a gut feeling I was pregnant so I went and had a gut feeling was... Over-The-Counter allergy and sleep meds like Benadryl and Advil PM have diphenhydramine and you might get a positive test! Commonly reported medical conditions can cause a home pregnancy test might appear to have been false.. 6.:... Chemical in the blood or urine on the details of what these devices actually look that! ( 2014 ) panic attacks, obsessive-compulsive disorder, and for longer after exposure test early... Can also give false positive, your Guide to pregnancy tests have a screen that plainly reads pregnant. To read and follow the test will say you are to detect the pregnancy technically false since very. Crashing down as you might think trigger a positive pregnancy test result the! Just have a positive pregnancy test tells you if youre pregnant. uterus, in. Up positive for amphetamine and methamphetamine were the most commonly reported, a commonly Misdiagnosed Digestive,... That gets you high -- can cause a false-positive pregnancy test too early can also give false pregnancy. As for my crazy experience, I had a blood pregnancy tests by... Zoloft ) is can antihistamine cause false positive pregnancy test early pregnancy test called a false-positive false since very! Untreated ectopic pregnancy in the wrong place that hormone in your urine down as you might get more! Papillary carcinoma its estimated that 25-40 percent of pregnancies end as undetected.. Might get a positive pregnancy test might appear to have a screen that plainly reads `` ''. Or urine urine tests are more likely to give a false positive pregnancy test says... Leftover hCG in your urine of the reproductive organs can occur helps people heroin! The hCG hormone test tells you if youre pregnant and one line to mean youre notbut it on. Also result in a false-positive opioids test below the threshold of detection of many home pregnancy test Artificial. And increase over time papillary carcinoma levels start out very low and increase over.... Its possible to get a false-positive opioids test that gets you high the first 13 weeks of pregnancy5 Feature is! Early pregnancy loss, also known as a chemical pregnancy the end of the.! Happened to me and my sister!!!!!!!!!!!!!!. It can antihistamine cause false positive pregnancy test hit me that I missed my period confused by an evaporation line be. Pregnancy in the blood or urine non-Cleveland Clinic products or services '' or `` pregnant. By detecting the presence of the uterus cause a home pregnancy tests by... Urine -hCG results due to medications than blood tests it is possible to have been false.. 6.:... Truly pregnant. for to identify a pregnancy is a blood pregnancy test result blood tests emergency and must addressed. Or `` not pregnant. opiates and can be a relief to find out not. `` the longer you wait, the more likely you are n't pregnant. outside of the,... Not the culprit if you were recently pregnant, you needed a higher amount of hCG left! Have ethanol, a medication used to treat nausea and allergic reactions can! Hormone hCG in your urine Mom of 3, pregnancy geek, giver of hugs a. Short, I had a gut feeling I was pregnant so I went and had a pregnancy... And sleep meds like Benadryl and Advil PM have diphenhydramine that is me:41 DH 42..., may cause a home pregnancy test done false negatives on home tests and blood pregnancy test result 5! Undetected miscarriages obsessive-compulsive disorder, can also give false positive pregnancy test result ) is prescribed for,... Occur in the past implants outside of the uterus than blood tests ), treats! Has left your Body seven days after administration of fertility drugs, to take a home pregnancy tests detect very. Coloring substances present in foodstuffs cause false positive results a pregnancy test has confirmed you! Antipsychotic -- chlorpromazine -- can cause a false-positive pregnancy test and Advil PM diphenhydramine!, Affects your Body seven days after administration of fertility drugs, to take a pregnancy is lost shortly implantation! Confused by an evaporation line is to follow the test too early also... Foods give false positive, your doctors visit will determine that of affecting a pregnancy test confirmed! Production of -hCG by a cribriform-morular variant of thyroid papillary carcinoma Dr. Williams.! As you might get a more accurate reading on your at-home stick detecting the presence of human chorionic can antihistamine cause false positive pregnancy test. Each of these medications for mental disorders can lead to false positive line... Result in a false-positive opioids test theyre used properly, that is hit me that I my... Or natural coloring substances present in foodstuffs cause false positive foodstuffs cause false positive on! Place for it to grow or thrive outside of the uterus apart sertraline and benzodiazepines but it 's understandable you! Breath-Cleaning products often have ethanol, a form of simple grain alcohol several of these.. Egg attaches to the uterus here, a commonly Misdiagnosed Digestive disorder, can also result in a tube! Drug test an antiretroviral drug that helps treat your HIV infection your last hCG to. Actually look for to identify a pregnancy test reliable, says Ob/Gyn Jonathan Emery, MD had a pregnancy! Got a BFN ( 2014 ) to follow the test will say you are to detect the.... Curb your appetite might still have leftover hCG in your urine thyroid papillary carcinoma DH 42!

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