How does emergency contraception work?

In general, emergency contraception works by preventing ovulation (release of egg from ovary), fertilization (egg and sperm fuse) or implantation (fertilized egg getting stuck in uterus wall). There are a few types of emergency contraception—the morning-after pill, Ella (a prescription morning-after pill) and IUDs (intrauterine devices). Most people use the term “emergency contraception” to mean the morning-after pill (like Plan B).

The morning-after pill is only effective at stopping ovulation, which means timing is critical. Plan B works best when taken within the first 72 hours (or 3 days) after unprotected sex (but sooner is better!). Thereafter it is much less effective.

You can get Plan B at any drug store without a prescription. You might have to ask the pharmacist for it but it should be given to you without question. You WILL have to pay for it so I suggest asking your partner to chip in.