Hi! So I had sex with my boyfriend on 12/23. The condom slipped off and I wasn't sure if it leaked so I took Plan B One Step no less than 3 hours later. My last period was 12/1, and my expected period is 12/30. So two days after my expected period, (1/1) I began to bleed and experience cramps. Is this my period or is it a side effect of Plan B? I took it too close to my period and I'm not sure if it's just a side effect or my actual period. Also, is it still possible I am pregnant?