what is emergency contraception and how does it work
Emergency contraception is a way to prevent pregnancy after unprotected sex; for example, if a condom breaks or slips off during sex. It is also available to teens who are forced to have unprotected sex.
The copper intrauterine device (IUD) can sometimes be used as a form of emergency contraception when inserted up to 5 days after unprotected sex. It works because the copper prevents sperm from swimming or functioning well. While more expensive than ECPs, an IUD is the most effective type of emergency contraception.