I have PID. And that's what I get. The semen or if ur man has a big package it's irritating your cervix causing it to swell and also causing ur uterus and or your falopean tubes which can cause infertility. It prolly hasn't done it because u haven't had any flare ups. But when u do have another flare up make sure u go to the ER right away. It's not an std. But it is usually caused by stds like chlamydia or gonnoreah but if your like me the bad bacteria is outweighing the good bacteria. Everyone has both bacteria in their ****** but for some reason there is no balance between the two and its crawling passed your cervix and entering the uterus and can be potentially bad as it could cause scarring and resulting in infertility.

With that scenario OP is gonna need is lot more than a muscle relaxer if OP is male..... Just Sayin.

I apologise..my iTouch crashed..what I meant to say is.. Go see a doc! No point in sex if it hurts..

What I was thinking. Endo can be painful In many ways. Plenty of treatments for it ranging from birth control to easy out patient surgeries. If it is endo you need to see a doc. It can cause bigger issues down the road if left untreated. Infertility being one.

Used to happen to me too. Agonizing, curl up in a ball and cry kind of pain. Out stayed for about 6 months and then went away one day. OP, there are internet forums of women who have that same problem, you're not alone! See a doctor for sure, but mine just went away on it's own

I had the same experience. I was told by my doctor that it is likely when this happens it is due to excess prolactin hormone, which makes your uterus contract. It's apparently quite a common, harmless (but unpleasant) thing for women. It also could be linked to PCOS or endometriosis.