Did you know that the famous Plan B/morning after pill is an emergency contraceptive that helps prevent pregnancy when taken within 72 hours (3 days) after unprotected sex or birth control failure. The sooner it's taken, the better the chances of preventing pregnancy. Plan B should not be used as regular birth control and is also not a abortion pill. It certainly does not cause abortion or miscarriage, so it will not work if taken when you are already pregnant. It also does n