A few weeks ago I had some pretty rough sex with my partner. He is quite large so during intercourse he kept hitting my cervix and I didn't stop it and it was quite hard that it was being hit (well very hard). It did hurt quite bad at the time, but I continued. Now ever since I have been having some pretty bad cramps. Could this be just because my cervix is irritated and sore from that encounter or could I have did some serious damage? I have tried to find info on the net, but no luck. Any input would be greatly appreciated! Thanks. I am sure it isn't an std because we use protection and the cramps started immediately after and intensified the next morning.