Levonorgestrel
"Girls, if you think it's not going to work stop sweating it. My boyfriend and I had sex while I was ovulating and the comdom broke and about 9 hours later we got Plan B and I took it. I got my period 2 weeks early and broke out pretty bad and had terrible headaches but it's better than pregnancy and taking care of a baby when you aren't ready. Don't worry it works"