Sexual health is a key part of a woman’s health, and we’re here to answer your questions. Question: What is Plan B? Plan B One-Step is the #1 OB/GYN recommended emergency contraception brand that works by temporarily delaying ovulation – the release of an egg from the ovary. No egg, no fertilization, no pregnancy. Plan B must be taken within 72 hours after unprotected sex or birth control failure (like a missed pill or the condom breaking)! Follow along all week while we answer common questions and arm you with the facts you need to help you make informed decisions. Use as directed. #IveGotThis #emergencycontraception