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Doctor insights on: Online Pregnancy Probability Test

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Dr. Gregory Moneta
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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What is the probability of a false negative pregnancy test?

What is the probability of a false negative pregnancy test?

See below: When done in accordance with manufacturer's direction, both sensitivity and specificity are high. ...Read more

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What is the probability of getting negative tests and period like bleeding throughout pregnancy?

What is the probability of getting negative tests and period like bleeding throughout pregnancy?

Very small: Many causes for bleeding during pregnancy, but all are abnormal, and require investigation. One not too worrisome cause of light bleeding in early pregnancy is termed "implantation bleeding"--a small amount of bleeding that occurs when the embryo implants in the uterus that occurs around the time of an expected period. ...Read more

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Do early positive results on pregnancy tests indicate a higher probability of twins? I had 3 positive pregnancy tests at 3 weeks pregnant.

Do early positive results on pregnancy tests indicate a higher probability of twins? I had 3 positive pregnancy tests at 3 weeks pregnant.

Not necessarily: Home urine pregnancy tests are fairly sensitive and can be positive within 9-10 days of conception. The higher the HCG (or pregnancy hormone) the more quickly it will turn positive and HCG does tend to be higher with twins...So maybe. Make an appointment with your doctor to determine. ...Read more

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What's the probability of having a false negative pregnancy test when my period is 3 days late?

What's the probability of having a false negative pregnancy test when my period is 3 days late?

Not inconceivable: Sorry but pun was intended. While home pregnancy tests are fairly sensitive, some women will have a negative test early on during pregnancy. So if you've been engaging in unprotected sex and your test is negative 3d after being late, then repeat test once you're a week or two late. By 2 wks late or 6wks after last menstrual period, home pregnancy test should be positive if you're pregnant. ...Read more

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What is the probability of a home pregnancy test being a false negative when my period is 3 days late?

What is the probability of a home pregnancy test being a false negative when my period is 3 days late?

Check later, not now: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, 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, a positive result is likely real, but a negative result may be due to testing too soon. ...Read more

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Pregnancy test online scan could it b?

Pregnancy test online scan could it b?

Use the urine test: Testing one's urine is so simple and so accurate that there is no reason to bother with an online survey. An online test cannot give a definite answer (it has no sample of one's blood or urine), so it can only make a guess (hopefully and educated guess). ...Read more

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How accurate are online scan pregnancy test?

How accurate are online scan pregnancy test?

Urine test is better: Testing one's urine is so simple and so accurate that there is no reason to bother with an online survey. An online test cannot give a definite answer (it has no sample of one's blood or urine), so it can only make a guess (hopefully and educated guess). ...Read more

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I'm trying to take a pregnancy test online for free?

I'm trying to take a pregnancy test online for free?

There is no free: pregnancy tests online that I know of. You can go to Dollar General and get a cheap test, but not free. ...Read more

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Is it true that some women never get positive pregnancy tests throughout their pregnancy? Been reading stories online

Is it true that some women never get positive pregnancy tests throughout their pregnancy? Been reading stories online

Unbelievable: You can't believe everything you read online, however the quality of pregnancy tests have improved considerably over the years and are very accurate. ...Read more

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Is it possible that some women never get positive home pregnancy tests throughout pregnancy? Been reading stories online

Is it possible that some women never get positive home pregnancy tests throughout pregnancy? Been reading stories online

Gullible?: Remember the advisory not to believe everything you read? Can you, as a female, believe that any female could have a baby growing inside of them for nine months and not in some way know that something was wrong? Or different? Or that they were pregnant? Please do not be gullible about stories like this. ...Read more

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Is an hCG blood test with a level 6 pregnant? I've read online that is early pregnancy.

May be: An HCG level of less than 5 is non-pregnant state. Above 25 indicates pregnancy. Between 5 and 25 needs to be repeated in 3-4 days. ...Read more

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I read online that a small percentage (10-15%) of women can get a positive pregnancy test 1-2 days past ovulation. Possible? Impossible?

I read online that a small percentage (10-15%) of women can get a positive pregnancy test 1-2 days past ovulation. Possible? Impossible?

Pregnancy: Impossible. To test positive the egg has to be impregnated. It then has to travel through the fallopian tubes into the uterus. It then has to land on the wall of the uterus and begin to grow. It then has to grow to a certain size to be creating and leaking HCG hormone so that the mother's blood supply can pick it up and thus then be testable. The body does not know a pregnancy has occurred. ...Read more

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I am just wondering having regular periods and negative tests means no pregnancy because my friend is very parionied she had read online that some la?

I am just wondering having regular periods and negative tests means no pregnancy because my friend is very parionied she had read online that some la?

Yes: If your friend is having regular periods and negative pregnancy tests, then she is not pregnant. If she is having other symptoms that would lead her to believe she is, she should discuss these symptoms further with her doctor in order to find out the cause. Best wishes. ...Read more

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I think I am pregnant. I am having all the symptoms and my stomach is feeling weird and getting bigger. Every online pregnancy test that I have done and all homemade tests have come back positive.

I think I am pregnant. I am having all the symptoms and my stomach is feeling weird and getting bigger. Every online pregnancy test that I have done and all homemade tests have come back positive.

I'm: I'm not sure exactly what you mean by homemade tests, but please take a urine pregnancy test purchased at a market or pharmacy to be sure. Then if it is positive you need to see a gynecologist for a complete evaluation. Diagnosing pregnancy early is important so that you can get the best care during pregnancy. ...Read more

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How can I take an online pregnancy test. My gums been bleeding. I been feeling tired and bad headaches?

How can I take an online pregnancy test. My gums been bleeding. I been feeling tired and bad headaches?

Online preg tests?: Take the Mouse and rub it on your stomach area and then, . JUST KIDDING! ....Online, there may be some questionnaires you can fill out/answer that can give you an "IDEA" if you are pregnant, BUT a definitive test is made through a Urine or serum (Blood) pregnancy test. With your symptoms, it is best for you to get evaluated by a Dr. Best wishes. ...Read more

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What does Positive western blot mean? Think I have Lyme but read online & said could be HIV but don't they test HIV in pregnancy? I Just had a baby

What does Positive western blot mean? Think I have Lyme but read online & said could be HIV but don't they test HIV in pregnancy? I Just had a baby

Easy does it: Western blot is not a specific test but a methodology. A western blot for Lyme disease tests for Lyme; a Western Blot for HIV is a different test. Truth be told, you need to be discerning in your internet reading and wary of self-diagnosis -- there's a lot of easy, wrong answers out there. Your physician is your best guide here -- if you had routine prenatal care you were tested for HIV. ...Read more