How Long Can You Wait to Take Plan B?

Plan B is an emergency contraceptive pill. It should be taken within 72 hours of having unprotected penis-in-vagina sex. You do not need a prescription.

Plan B One-Step Emergency Contraceptive (72 Hour Efficacy Window)

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How Long Can You Wait to Take Plan B?

Plan B Won't Affect Fertility, Even If You Take It Often

Don't Panic! There's Always Plan B

Does Plan B work if you have already ovulated? - Quora

Morning-after pill - Mayo Clinic

A new 'male birth control' pill might be safe, but there's still a long way to go, researchers say

Plan B Emergency Contraception, NYS Approved OB/GYN, Brooklyn, NYC

Science at Issue in Debate on Morning-After Pill - The New York Times