My last three periods have started on Wednesday October 9, Wednesday November 6, and Sunday December 1. I had sex on Friday December 13 and he ejaculated inside me. My first question is was I ovulating and could I be pregnant? Then on Thursday December 26, 13 days after I had sex, I think I started my period. It was just small spotting, brown in color with a little bright red. Today on the 27 I have been having these terrible cramps I've never had before and I have had them all day, nonstop. Something I've never had before. My period has also gotten heavier and I have had these cream colored clots then later today I have had full dark red clots but I'm still having cramps. I just want to know if something could be wrong and I would like some help.