I used to be on BC, but when I found out I was taking it wrong I had to stop. I'm supposed to start it again the Thursday after I get my period... that is if my period comes. This is why I'm here. My boyfriend and I had unprotected sex, and I asked my mom if my period could be late because I'm no longer on BC. She became suspicious and a few days later we talked. I'm 17, by the way....