Does Plan B (emergency contraception) kill the egg?
Plan B does not kill the egg. Plan B, also known as the “morning after” pill, is a way to prevent pregnancy after sex. Plan B consists of two pills that must be taken within 72 hours after unprotected sex. The hormones in Plan B (levonorgestrel) may prevent pregnancy by temporarily stopping the release of an egg from a woman’s ovary or it may prevent an egg from being fertilized. It may also prevent a fertilized egg from attaching to the uterus. Plan B will not work if you are already pregnant.
