Good luck hun, I don't think you have anything to worry about!
I was also wondering if I could be having a hysteria pregnancy, Where I think i am, but really am not. Im going to DRs tomorrow to find out whats going on.,... :(
You're not pregnant, you can't get pregnant from anal, and you have to have full on vaginal penis penetration for a chance of pregnancy. You aren't pregnant, and yes I get these symptoms near my period.