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Doctor insights on: Can You Get A False Negative Blood Pregnancy Test

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Dr. Tiffanie Noonan
4 doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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Can you have a false positive pregnancy test?

Can you have a false positive pregnancy test?

Yes : Certain tumors produce HCG and these will produce a false-positive pregnancy test even in a man. A chemical pregnancy (in which the conception is lost very early) might be considered a false-positive. I trust the specimen is not contaminated. Good luck; i hope that whatever comes next is what you want. ...Read more

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Can you receive a positive pregnancy test then a negetive?

Can you receive a positive pregnancy test then a negetive?

Yes: Either one of the tests may be in error. If both test results are accurate, it may reflext loss of an early pregnancy. ...Read more

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Can you get a negative pregnancy test and miscarry? Still not getting a positive result?

Can you get a negative pregnancy test and miscarry? Still not getting a positive result?

Neg test = not preg: Home pregnancy tests are very accurate. They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. ...Read more

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How soon can you get a positive on a urine pregnancy test & blood pregnancy test ?

How soon can you get a positive on a urine pregnancy test & blood pregnancy test ?

Preg test: Home pregnancy tests are very accurate. They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. ...Read more

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Can you get negative pregnancy test with chemical pregnancy?

Can you get negative pregnancy test with chemical pregnancy?

Yes: If you mean a urine pregnancy test then yes. A serum (blood) pregnancy test is positive at a level of 5 for most labs. Urine pregnancy tests turn positive between 15-25 depending on the manufacturer. So you could have a positive serum and negative urine briefly with a chemical pregnancy ...Read more

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Can someone be pregnant after a negative home pregnancy test and a negative pee test from the clinic? Should they take another test?

Can someone be pregnant after a negative home pregnancy test and a negative pee test from the clinic? Should they take another test?

Trust the test: Home pregnancy tests are very accurate. They are the same tests used in a doctor's office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. ...Read more

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Can a blood pregnant test show up positive before a urine pregnant test? How early can the blood test show positive?

Can a blood pregnant test show up positive before a urine pregnant test? How early can the blood test show positive?

Yes: A serum ( blood) pregnancy test can be (+) as early as 7- 10 days post conception since it can detect very low levels of the pregnancy hormone beta hcg, the test gets more accurate as the pregnancy advances however. ...Read more

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Can a pregnancy test show up positive if your already pregnant?

Can a pregnancy test show up positive if your already pregnant?

Yes: Pregnancy test looks for presence of HCG in urine or blood. A pregnant woman always has a high enough HCG level for the result to be positive. A positive pregnancy test does not say any thing about how long the woman has been pregnant. ...Read more

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Can you get a false positive on a urine test for chlamydia?

Can you get a false positive on a urine test for chlamydia?

Very unlikely: Urine test for chlamydia has comparable sensitivity and specificity as cervical or urethral specimens which are high if NAAT was use as a test (Nucleic acid amplification tests (NAATs). ...Read more

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Is it possible to have a false negative blood test for pregnancy? I've had positive home pregnancy tests for 2 weeks but my blood test said negative

Is it possible to have a false negative blood test for pregnancy?  I've had positive home pregnancy tests for 2 weeks but my blood test said negative

Blood test better: Blood test for HCG is more sensitive and specific. There may be an issue with your technique for testing, especially how long after applying urine did you read the test? If you still have doubts, you may see your doctor for an ultrasound examination. ...Read more

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What is a reason for you to have 3 positive home pregnancy tests but a. Negative blood pregnancy test?

What is a reason for you to have 3 positive home pregnancy tests but a. Negative blood pregnancy test?

Possibilities: Here are a few possibilities: 1. You are doing the home test wrong --- letting it sit too long or have expired tests 2. You miscarried between doing a home test and taking the blood test 3. There is a lab error on your blood test. Try repeating the urine now since you have had a neg blood test. If positive then repeat the blood. Blood is the more accurate test. ...Read more

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Can you get a positive pregnancy test and then get a negative but still be pregnant?

Can you get a positive pregnancy test and then get a negative but still be pregnant?

Yes...: So it's best for you to see an ob/gyn doctor immediately for confirmation one way or the other. Remember that if there is any chance you could be pregnant, avoid drinking alcohol or taking any medications unless cleared by your doctor. Good luck! ...Read more

Dr. Stephen Sudler
482 doctors shared insights

Pregnancy Test (Definition)

A pregnancy test measures a hormone called human chorionic gonadotropin (HCG). HCG is a hormone produced during pregnancy. It appears in the blood and urine of pregnant women as early as ...Read more