My boyfriend and I decided we were going to have sex and So he gets half way in and we get caught, so he pulled out. A week later we decide that we are gonna try to again and this time we did have sex protected sex of course, he came in the condom inside of me and there was none on the outside when he pulled out, I've been having really bad cramps since then and back pains too and I've been eating a lot but I normally do when I'm about to get my period. I was supposed to get it today but I didn't.. I don't know what to do..