How Does it Work?
The woman has to take the first pill immediately after receiving it and then take the second pill twelve hours after the first one in order to maintain the high hormone levels in her body.
As we already discussed, the morning after pill prevents the egg, fertilized or not fertilized, from embedding itself in the uterine lining, thus it prevents pregnancy, rather than terminated it as some groups would argue.
Because of the way that the morning after pill works, it is only 80% affective. Those who choose to continue with the pregnancy once the pill has failed risk carrying a damaged fetus. Others would choose to use RU-486, the abortion pill.