I had sex on 12/2/12, 12/11/12, 12/15/12 and on 12/17/12. The last two times we didn't use a condom and he came inside of me. My period was a few days late and it wasn't normal. It was heavier and there was clots (i had to changed my tampon a couple times in a hour) and it lasted longer(over a week) and I had really bad cramps. (I had cramps before I started, during my period and after my period)