Me and my husband had sex last night, I was on top, it wasn't rough sex. But right after we finished my stomach started hurting really bad, to the point I couldn't move, it was all cramped up, I was in tears, and when I went to touch my pelvic area it hurt so bad. Now today it's gone, I feel a little pressure but no where near as bad as it was last night. Does anyone know what it could be from? Has this every happen to any of you ladies.