All,
So a friend of mine is planning a family and haven’t gotten pregnant yet. Her gynac said they it may happen right away or may take even a year to conceive. Well, i don’t really understand this.
If a fertile man and woman are having frequent sex, what really leads to not getting pregnant?
In: Biology
Something like 3/4 of all pregnancies go unnoticed, i.e. they’re naturally aborted. Now consider you only have one chance per month. So an approximate probability of success within two months is `.25 + .75 * .25 = .4375`, within three is `ans + .75² * .25 = .578125` and so on.
That’s assuming pregnancy even occurs. Things can go wrong before.
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