Hi, last night my boyfriend and i have doggy style sex. It didnt hurt at first, but about an hour after i started cramping up. It NEVER hurts after sex, and this is the first time we did doggy style and im in alot of pain. I am on my period so im bleeding regardless of if i hit something. It is still hurting today, very badly. I have had no fever or any bad symptoms other than my whole low region hurting, which is also enacting on my lumbar scoliosis. Please if there is anything that can be done, i will try anything. I dont have money for doctor.