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Doctor insights on: False Negative Pregnancy Test Rate

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Dr. Oscar Novick
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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How often could a false negative pregnancy test occur?

How often could a false negative pregnancy test occur?

Not often: Pregnancy tests are quite accurate. A pregnancy test should be accurate by about 12 days after your ovulation, so by the time your period is late the test should be accurate. ...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 are the chances of getting a false negative pregnancy test?

Rare: If you do a pregnancy test accurately and at the right time, the chance of a false negative test is less than 1%. It is important to do it when you have missed your period. Doing it too early, is the most common reason for a false negative pregnancy test. ...Read more

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Any medications or illnesses that can cause a "false negative" pregnancy test?

Any medications or illnesses that can cause a "false negative" pregnancy test?

HCG: There are some medications that can cause a positive pregnancy test and there are some medical conditions that can also turn a positive pregnancy test without actually being pregnant. Please see your obgyn asap. ...Read more

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What are the chances of a false negative pregnancy test I've been having a lot of symptoms took a test and it said negative ?

What are the chances of a false negative pregnancy test I've been having a lot of symptoms took a test and it said negative ?

Possible if early: A false negative pregnancy test is possible if the test was done too early or the test is beyond its expiration date. Wait for 3-5 days and do a repeat test using your first morning urine. If it is still negative, there is another cause for your symptoms. Hope this helps. ...Read more

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Can Topomax cause false negative pregnancy test?

Can Topomax cause  false negative pregnancy test?

No: If the test is a conventional pregnancy test, it should not make any differance. However, for the accuracy serum hCG test always available in an OBGYN's office. 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