Hello I am a little worried because my boyfriend and I had unprotected sex and I still have not gotten my period. I am honestly not sure if he ejaculated on me or not ? He says he didn't but I'm not so sure of that.. I took the plan b pill about 24 hours later just to be safe... Although, I still have not gotten my period. I usually get it around the 20th of every month.. I know sometimes plan b can irregulate your menstural cycle but I have took it before and I usually get my period on time.. I have not been feeling any symptoms... Can I be pregnant?