emergency contraception
"Don't worry to much! Plan b really works. I had sex with my boyfriend and the condom broke, I wasn't on birth control. It was also around the time I should have been ovulating. I took it within 2 hours. I had breakthrough bleeding a few days later that lasted almost a week. When my period was 10 days late I went to the doctor and had a pregnancy test and it was negative. They told me it can take another few weeks to get my period and that plan b screws up your cycle. My period ended up being about 3 weeks late, so don't panic! I went back to the doctor for another pregnancy test 3 weeks after the first (recommend by them to make sure) and it was negative again. Be patient, it really works."