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Doctor insights on: When Can I Trust A Negative Hpt Test

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Can I trust a negative hpt test five weeks after unprotected sex?

Can I trust a negative hpt test five weeks after unprotected sex?

Yes: Home urine pregnancy tests are very reliable. There would certainly be a positive by 5 weeks after conception. ...Read more

Dr. Heidi Fowler
933 Doctors shared insights

Home Pregnancy Test (Definition)

Any one of several kits available to the public. They rely on a colorimetric reaction that, in the presence of at least 25 miu hcg, will indicate positivity ...Read more


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Can I trust a negative hpt test at 8 1/2 weeks or could I still be pregnant?

Can I trust a negative hpt test at 8 1/2 weeks or could I still be pregnant?

Pregnancy questions: This question is missing vital information. Eight and 1/2 weeks of what? Have you not had any periods? Or are you having regular periods? What are your cycles like? When did you have sex during your cycle? Did you have a positive pregnancy test? ...Read more

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Can you trust a negative hpt test 21 days after unprotected sex? Had a normal period but breasts are hurting.

Can you trust a negative hpt test 21 days after unprotected sex? Had a normal period but breasts are hurting.

Not necessarily: You say that you had a period after the episode of unprotected sex; that makes pregnancy unlikely. You could re do the test; use first morning urine and follow the instructions in the package carefully. ...Read more

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Two positive HPT tests in the morning, but negative in afternoon...?

Two positive HPT tests in the morning, but negative in afternoon...?

HPT test results: Very early in pregnancy, the beta-HCG levels will be higher in the morning so will trigger the home urine testing kits to test positive sooner. Later in the day, a woman can drink enough water to dilute the hormone level down enough to get a negative test. This is only true in VERY early pregnancy. Once a woman gets to 3 weeks after conception, it doesn't matter time of day. ...Read more

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After getting an answer here I took a test like directed and it was negative. I am about 5 days late. R hpt accurate? It was first response test.

After getting an answer here I took a test like directed and it was negative. I am about 5 days late. R hpt accurate? It was first response test.

Yes: Home pregnancy tests are very accurate: they will usually detect pregnancy within 6 days. I would recommend a second test in about a week, and if still negative, then you have skipped a period, and your next one is likely to be a little stronger and longer than usual. ...Read more

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Got a pos hpt can it change to negative over a course of 4 days? Or does it remain positive? Just wanna know bc wanna keep the test to show hubby!

Got a pos hpt can it change to negative over a course of 4 days? Or does it remain positive? Just wanna know bc wanna keep the test to show hubby!

Do another one: When your husband comes back, it will still be positive and you can show it to him. The "old" one will usually turn darker, and it may get pretty rank in 4 days. Good wishes. ...Read more

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Had m/c on 03/08 took a test 4 days and it was negative since then I have had 3 hpt that were - I took 3 more they were +is this false reading or real?

Had m/c on 03/08 took a test 4 days and it was negative since then I have had 3 hpt that were - I took 3 more they were +is this false reading or real?

Possibly pregnant: You should definitely see your doctor about this. Have you been sexually active since the miscarriage? If it was an early miscarriage, ovulation can occur quite soon. Therefore you might be pregnant. Be well. ...Read more

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I had bleeding if hpt is negative should I test again?

I had bleeding if hpt is negative should I test again?

Depends: If you had a negative hpt and then had menstrual bleeding, there is no need to repeat the test. Time to do the test is 4-5 days after a missed period if you had sex in the prior cycle. ...Read more

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I took a hpt test 4 weeks after sex and it was negative. Am I good?

I took a hpt test 4 weeks after sex and it was negative. Am I good?

Probably safe: You are probably safe as far as pregnancy goes this time if your pregnancy test is negative 4 weeks after intercourse but you still need to protect your self against STDs and start a reliable method of contraception. Be safe! ...Read more

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How accurate are hpt? Can I rely on the result? Took test 8 weeks after sex. All 4 came back negative.

HPT/EPT: Well some women do produce an antibody that makes their HPT turn negative even if pregnant. Those patients need a serum pregnancy test. Most urine tests are accurate and become positive at levels of 15-25miu/ml, whereas the serum test is positive at 5miu/ml. So, just a few days difference between blood and urine. ...Read more

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Is it normal or shoud I worry? I took hpts and all negative even after being 12days late but had blood test and it was positive.

Is it normal or shoud I worry? I took hpts and all negative even after being 12days late but had blood test and it was positive.

Can be normal: There is a condition in which blood pregnancy test is positive and when measured it shows really low values. Also negative pregnancy test is negative. Is called heterophylic ab syndrome. If pregnancy test still negative more likely this is your problem. ...Read more

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Gf did a hpt and at time to read results there was a v faint line and 1 min later it disappeared. Test worked but is that neg or pos?

Gf did a hpt and at time to read results there was a v faint line and 1 min later it disappeared. Test worked but is that neg or pos?

Positive: Many of these tests are super sensitive. So, I would err on the side of caution and say that any indication--regardless of the transiency--should be taken as a positive until proven otherwise. ...Read more

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For the past 2 weeks I've had positive HPTs, but negative blood test, I'm still having positive HPTs from different brands too. Any thoughts?

For the past 2 weeks I've had positive HPTs, but negative blood test, I'm still having positive HPTs from different brands too. Any thoughts?

Test performance iss: It is possible that you are doing something that doesn't conform to test manufacturer's instructions. If you don't have pregnancy symptoms and the blood test has been verified out of error by the lab, then that is the correct one. ...Read more

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What would cause a HPT to be neg but a blood test to be pos?

What would cause a HPT to be neg but a blood test to be pos?

Testing too soon: Testing too soon or not using the first urine of the day. ...Read more

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Hpt positive twice doctors test negative three times what's happening?

Hpt positive twice doctors test negative three times what's happening?

HPT: Did the test sit out to long and develop evaporation lines? You must read the test at the exact time directed as it can concentrate if left to sit. If doctor did blood test - trust result. ...Read more

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Is a negative hpt result 6wks after sex accurate or too early to test?

Is a negative hpt result 6wks after sex accurate or too early to test?

Accurate by 3 weeks: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, STD's, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner than 2-3 weeks after sex, a positive result is likely real, but a negative result may be due to testing too soon. ...Read more

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How common is a false negative in a hpt? Are blood tests 100% accurate?

How common is a false negative in a hpt? Are blood tests 100% accurate?

No test is 100%: Accurate. Home pregnancy tests are generally accurate if performed correctly and about two weeks after a missed period. Blood tests may be positive sooner. All lab tests have false negatives and false positives and the test results need to be interpreted in the clinical context. ...Read more

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Is it possible 2 get neg hpts n blood tests nothing on u/s n stil b preg ?

Is it possible 2 get neg hpts n blood tests nothing on u/s n stil b preg ?

Negative but prego: Only if the tests are taken before the embryo has started to implant. Embryo implantation starts at about 7 days after conception. So tests taken during that time will be negative. Technically speaking, that time isn't really considered that you're pregnant anyway. ...Read more

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10 days late, negative blood test, and negative HPT. Why? And what can I do?

10 days late, negative blood test, and negative HPT. Why? And what can I do?

A late period: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections & hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test. There are many options available to help regulate the menstrual cycle. Schedule a visit. ...Read more

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8dp3dt icsi, hpt negative, did I test too early or am I right to think its not worked?

8dp3dt icsi, hpt negative, did I test too early or am I right to think its not worked?

Too early!: 8 days after a d3 transfer is way too early to test. Wait until at least a few more days go by; even better, test when your ivf doctor wants you to (not before.). ...Read more

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Faint positive HPTs after but less than 2 quantitative test, getting faint positive hpts but negative blood test?

Faint positive HPTs after but less than 2 quantitative test, getting faint positive hpts but negative blood test?

False positive urine: You seems to have false positive urine pregnancy test. Blood test is more sensitive and if it is negative then you can rest assure that you are not pregnant. ...Read more

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Missed per. July -4 hpts all negative. Urine test @dr 1 mth aftr missed per. Neg. Bled norm per on time for aug. 2 more neg hpts. All wrong?

Missed per. July -4 hpts all negative. Urine test @dr 1 mth aftr missed per. Neg. Bled norm per on time for aug. 2 more neg hpts. All wrong?

See details: With that many negative pregnancy tests, I would say you are not pregnant. You most likely had a dysfunctional cycle. This is related to hormonal imbalance and no ovulation. In addition, at 47 you might be approaching menopause therefore there may be a tendency for you to miss cycles. Your GYN can make appropriate recommendations based on any future irregularities. ...Read more

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Had done IUI on 4th july it's now day 12 and I done a hpt it came out negative. Suppose to do bloodtest on the 19th july was it to early to test?

Had done IUI on 4th july it's now day 12 and I done a hpt it came out negative. Suppose to do bloodtest on the 19th july was it to early to test?

Patience...: Patience is a virtue that all parents should seek. From the 4th to the 19th is a very short time (to relax and not think about babies). A urine pregnancy test done correctly should give a reliable result after 2-3 weeks (making it less likely to be a false negative if it is negative). Hopefully, the blood test will be a positive, but there should be no need to give it another thought until then. ...Read more