Last time I had sex once we finished I has this terrible pain inside. In my lower stomach I had this sharp stinging pain, and I felt pressure from my vagina to my butt. We simply had vaginal src like we usually do and after it I was in so much pain. It last for 1 hr really bad and then another two hours lighter until it gradually stopped the next morning. I don't get why, this has never happened before and we did have sex the day before and everything was fine.