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What are the chances that a woman taking an emergency contraceptive pill...

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Originally posted by: habib89
Originally posted by: nakedfrog
Originally posted by: astralusion
well the thing is that you have to take it within 72 hours as it doens't make you unpregnant, only prevents conception from occuring (i believe)...therefore i would imagine it typically takes around 72 to hours to conceive...whatever it is i'm almost positive it takes longer than 24 hours

I think it prevents implantation of the fertilized egg to the womb, and it is then flushed out of the body.

winner

actually the "congratulations daddy" guy is the winner..

but anyhow, nakedfrog is right.. it just prevents implantation.. it's like teflon for the womb

actually that's wrong... that's one way it could theoretically work, but it's now known that the primary mechanism by which it works is by preventing fertilization in the first place. in most cases, if the egg is already fertilized, the morning-after pill will fail. this is an important distinction as a lot of people are mis-informed about the morning-after pill and think it induces an abortion (which, if it worked by altering the uterine lining, you could make an argument for). the morning-after pill is just a higher dosage of the regular birth control pill and works the same way - by inhibiting ovulation.

in re: to OP, the chances of pregnancy go up as you wait longer (because there's more time for the egg to get fertilized).
 
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