How does Plan B® work?

Plan B® is an emergency contraceptive that can be taken up to 72 hours after unprotected sex. But the sooner you take it, the more effective it is.

Would a Plan B pill work if I crushed it in water? I took it two days before ovulation, will it still work? - Quora

Plan B One-Step emergency contraception helps prevent pregnancy before it starts after unprotected sex or birth control failure. Plan B must be taken

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

Will Plan B Work After Ovulation? - HubPages

Can Plan B Make You Infertile? Morning After Pill Guide

Plan B One-Step Emergency Contraceptive

Plan B One-Step Emergency Contraceptive, 1.5 Mg (1 Tablet) : Health & Household

Will Plan B Work After Ovulation? - HubPages

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

What is Plan B? Get the Facts!

How Plan B and other emergency contraception work and how effective they are : Shots - Health News : NPR

How Does Emergency Contraception Work?- Pandia Health

Signs that Plan B did not work, success rates, and more

Plan B One-Step Emergency Contraceptive Levonorgestrel 1.5 mg Tablet - Shop Condoms & Contraception at H-E-B