Why does plan be only work if taken after sex? or does it work if take 4 hours before?

It's got a higher dose of the hormone used in birth control pills.

So it will be effective if taken before sex, right before like 4 hours..because thats all it does is prevents or delays ovulation. A 4 hour gap won't make hardly any difference most likely will it? Billy69 12 days ago .

Plan B can make you very sick. If you have 4 hours before, use another method! .

Plan B does not care when you're having sex, it only has to be in your system before the possible blastocyst gets to the uterus and tries to implant. So it does not matter if you take Plan B -- before, after, or even during sex. But you don't want to take it more than a day early or a day late.

If you take it too early, it may be wearing off when you need it, 3 days after sex about when the blastocyst has floated down to the uterus. You don't want to take it too late either.

If you haven't had sex yet, there is still time to use a preventative method; rather an an emergency treatment.

" "I forgot to take my birth-control over 24 hours and had sex. Could there be a chance I could be pregnant?

Seeing how it is still in your system eitherway.

How long of a break should you get if you work 8 hours.

I forgot to take my birth-control over 24 hours and had sex. Could there be a chance I could be pregnant?

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