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Doctor insights on: Should I Trust Hpt

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Why are hpts only 99% accurate?

Why are hpts only 99% accurate?

We are humans!: We are humans so our world is not perfect, not 100%. That means it is normal for lab tests not to be 100% accurate. ...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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Why is my hpt negative?

Why is my hpt negative?

That's normal: All normal girls and normal women have negative home pregnancy test results during the majority of their lifetimes. It's only when a woman becomes pregnant that the test result turns positive (but returns to negative after a baby is born). Thus, the normal baseline result is negative. ...Read more

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When is an hpt 100% correct?

When is an hpt 100% correct?

No test is 100%: By hpt, I assume you mean home pregnancy test. Statistically speaking, there is no test that is 100% correct 100% of the time. We're just happy to get 90+% sensitivity (positive test when you have condition) & specificity (negative result when you don't) when used properly as directed. But you can get false positive if guy takes hpt but you'd know to ignore result. Be sure to use test at right tim. ...Read more

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When is an hpt 100% accurate?

Can be after 6-12 d,: This can vary but the hpt tests can be accurate at 6-12 days after fertilization which is around the time when implantation occurs. There is the possibility of false negatives if done earlier. The rosette inhibition assay for early pregnancy factor (epf) can be done 48 hours after fertilization, but is costly and llong. U/s also done. See your doctor for more. ...Read more

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What is the most accurate hpt?

One of the early: Pregnancy tests is more likely to pick up on pregnancy early on than a standard home pregnancy test. Blood test is the gold standard. ...Read more

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How accurate are hpts at 21 weeks

How accurate are hpts at 21 weeks

They are excellent: The hpts are quite accurate, but they have their limit--maybe too early for the test to pick-up in cases when testing too early. In your case, you said you are wt 21 wks, no hpt is needed because you should be showing. The uterus should be quite large now and should be up to your belly-button level. Plesse consult doc for care. Don't delay.
Good luck. ...Read more

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Can I take an hpt again same day?

Can I take an hpt again same day?

Probably: If hpt means home pregnancy test, of course you can do multiple tests per day. But it would be more cost effective to wait a few days or more between tests. ...Read more

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When is the best time to take a HPT?

When is the best time to take a HPT?

After you miss: Usually after a missed cycle. We usually say say 35. If still negative then see your doctor. A urine test can be positive 3-5 days before your period but after a missed cycle is best. Hope this helps ...Read more

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Is HPT Accurate after ten days of sex?

Is HPT Accurate after ten days of sex?

Possible: It is possible that a HPT could be positive that early. However the most reliable time is one week after a missed period. If it says positive then it is probably correct. If it says negative then you need to test again later. ...Read more

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What can cause negative hpt at 6 weeks?

Lack of fetus: If hpt is negative 6 weeks after the last menstrual period, you are not pregnant. It may have been an anovulatory cycle. ...Read more

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What causes a question mark on hpt test?

What causes a question mark on hpt test?

Pregnancy: If it is unclear if the test is positive or negative, then redo the test. If there is still confusion, then go in for a blood test. ...Read more

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How rare do women never get positive hpt?

How rare do women never get positive hpt?

Never: A pregnant woman will have a positive pregnancy test except in the very earliest days of pregnancy when the hormone level is too low to detect it. ...Read more

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5 days late. Neg hpt. What could be wrong?

Missed period.: Could be that you have simply missed a period. This occurs for a variety of reasons, stress, exercise, and pregnancy, etc. Missed periods are very common at your age. You have pretty much ruled pregnancy out with a negative hpt at five days after the missed period. If you miss several mor periods you may want to see your doc to figure this out. ...Read more

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How early in the morning could I take a hpt?

How early in the morning could I take a hpt?

Not how early: When you wake first urine sample. Urine has been in bladder most of the night. Bladder has ability to extract water raising concentration of solute including hcg. The test is sensitive to this protein. The higher the concentration the more likely for a positive in early pregnancy. ...Read more

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What causes false negative hpt? Is it common?

Does happen: Some things that can cause a false negative HPT: Taking the test too early; Checking the results too soon (you have to read instructions and set a timer); Drinking a lot of water can dilute your urine and give you a false negative (first am urine is most concentrated). A pregnancy that isn't doing well such as an ectopic pregnancy sometimes doesn't make enough hormone to turn a test positive. ...Read more

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First response hpt does line intensity matter?

Package insert: Please read the package insert carefully to understand the meaning of different results. ...Read more

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How many weeks do you got yo be to get a pos hpt?

How many weeks do you got yo be to get a pos hpt?

Before next period: One-to-two days before your expected period is the time you can start testing, regardless of when you tried. You could consider this to be " 2 weeks." Good luck. ...Read more

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Is 7 days post a 5 day transfer to soon to do a hpt?

Probably: Ask your doctor but if you received HCG injection you could get false positive. ...Read more

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Can I take my hpt in the afternoon? Would be about 8 weeks

Yes: You can take it any time of the day and if you are 8 weeks pregnant it should be positive. Morning urine is usually better as it is more concentrated and is better for early diagnosis. ...Read more

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I did a hpt after 6dp5dt and was negative. Could it be wrong?

I did a hpt after 6dp5dt and was negative. Could it be wrong?

Unclear information: You probably tested too early. For home pregnancy tests, it is better to wait 4-5 days after a missed period to do the test. Blood test may be done one day after a missed period. ...Read more

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15 days late negative hpt? Could my levels be too low to detect

At 15 days after: missed period it should have triggered by now. Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems (i.e. PCOS). #1 reason is pregnancy ...Read more

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Usually very regular cycles, now 2 weeks late, but negative hpt?

Usually very regular cycles, now 2 weeks late, but negative hpt?

Hmmm: Give yourself a couple more weeks and see your doctor if no period. I may be simple anovulation if you aren't pregnant. ...Read more

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Why do some women never test positive on a hpt even at 9 weeks?

Why do some women never test positive on a hpt even at 9 weeks?

Not true except: Any woman who is actually pregnant will have a positive serum hCG test at nine weeks. Always (except in the case of a defective test.) If a woman at 9 weeks has a negative test 1) she is not pregnant, 2) she miscarried and didn't know it, 3) the test is defective. Sorry, but true. Good wishes. ...Read more