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Q: At Home Pregnancy Tests
asked by:
MrsLtd
Experienced User
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Replies(2)
shortgeek
Active User, very eHealthy
In my profession, we call that a selection bias. 
Now I'm going to show my geek side...
If the population randomly took pregnancy tests - men and women, on bcp and not, ttc and not, any day of the month/cycle - then you probably won't get that trend.
Most tests are probably taken by women who are ttc. (women who are unexpectedly late probably take fewer tests.) To avoid a false negative, these women take the test close to when af is due. Since the odds of getting pregnant are 25% or less, that means that 75% or more of the tests will be negative right before af shows up.
Now I'm going to show my geek side...
If the population randomly took pregnancy tests - men and women, on bcp and not, ttc and not, any day of the month/cycle - then you probably won't get that trend.
Most tests are probably taken by women who are ttc. (women who are unexpectedly late probably take fewer tests.) To avoid a false negative, these women take the test close to when af is due. Since the odds of getting pregnant are 25% or less, that means that 75% or more of the tests will be negative right before af shows up.
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Volaremos
Experienced User
Sorry it happens for you.
Well i dont really like those HPTs because if you have one your mind will force you to test, & mostly girls will end up heart broken, so i never keep them at home .
I only tested once with a HPT ( in my 12 cycles ) & that one test gave a BFP.
Hope it happens for you soon.
Well i dont really like those HPTs because if you have one your mind will force you to test, & mostly girls will end up heart broken, so i never keep them at home
.
I only tested once with a HPT ( in my 12 cycles ) & that one test gave a BFP.
Hope it happens for you soon.
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