Question 1

can exercise cause a false negative pregnancy test?

Accepted Answer

No: Exercise is not likely to affect the pregnancy test result.

Question 2

how often could a false negative pregnancy test occur?

Accepted Answer

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.

Question 3

what is the probability of a false negative pregnancy test?

Accepted Answer

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

Question 4

what are the chances of getting a false negative pregnancy test?

Accepted Answer

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.

Question 5

is it possible to get a false negative pregnancy test at 3 months ??

Accepted Answer

: Home pregnancy tests tend to be VERY accurate. You should be able to trust the results 3 months after sexual intercourse.

Question 6

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

Accepted Answer

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.

Question 7

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 ?

Accepted Answer

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.

Question 8

can topomax cause  false negative pregnancy test?

Accepted Answer

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.

Question 9

took 5 htp could it be a false negative pregnancy test?

Accepted Answer

5-Hydroxytryptophan: Should not effect your pregnancy test result.

Question 10

can to much urine cause a false negative pregnancy test?

Accepted Answer

Unlikely: This would only be possible of the HCG level in your blood was very low.  Once you miss your period, the HCG level in your blood should be high enough that the amount of urine won't matter.   Of course, if you are worried, you can repeat the test in a few days.  Best wishes!

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Doctor answers about:

False negative pregnancy test rate

A member asked:

Can exercise cause a false negative pregnancy test?

A member asked:

How often could a false negative pregnancy test occur?

A member asked:

What is the probability of a false negative pregnancy test?

A member asked:

What are the chances of getting a false negative pregnancy test?

A member asked:

Is it possible to get a false negative pregnancy test at 3 months ??

A member asked:

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

A member asked:

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 ?

A member asked:

Can topomax cause false negative pregnancy test?

A member asked:

Took 5 htp could it be a false negative pregnancy test?

A member asked:

Can to much urine cause a false negative pregnancy test?

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