Emergency Contraception (EC) can stop a pregnancy before it starts. (That means the EC pills are not the same as the abortion pill.) There are four types of EC to choose from and they all work up to 5 days (or 120 hours) after unprotected sex. But use it sooner rather than later to reduce the possibility of getting pregnant.
EC provides the possibility of prevention after the fact. There are more effective methods, but it's the quickest and easiest "after the fact" option out there.
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