So my boyfriend and I had sex September 14th and I got my period September 6 and it ended September 11th so now I'm just waiting for my period its supposed to come October 4th and my boyfriend and I used a condom and he pulled out before he came and I took plan b the next morning I don't want a kid I'm only 19 please I need advice I'm also nausceous and my boobs hurt but I'm eating normal and I'm wondering if I got my period before the sex then I'm. Fine right I'm so scared...?