I have been having sex for maybe 6 months now and have only been with one guy. In some positions, though, I get this really sharp pain in my front lower stomach area below my belly button. Is he hitting my bladder or ab muscles or going too far back or something else? We have sex once a day - maybe it is too much? I actually feel sore from it - it almost reminds me of how i feel when I get urinary tract infections, yet I just was treated for one and i have had this pain before. It usually happens when he is inside me when I am lying down on my back on the bed and he is standing by the bed or when he is sitting up while i am on my back.

I am on birth control so that is not the problem. We are monogomous and we both got tested within the last year and we both have only had unprotected sex with each othersince the testing. I guess I could just refuse to do those positions, but I like that I can still easily touch myself in that position and I know that he likes it. I think I can handle pain pretty well if I know that it feels good for him - but this hurts so much that my reflexes eventually push him away from me. Its making me not want to have sex anymore because I am anticipating the pain. Is there something wrong with me? I start overthinking that I have cancer or some kind of internal disorder or some STD (it makes me worry that he cheated on me or that he was not truthful about testing). I've asked him what he thinks and he has no idea what is wrong so I am assuming this has not happened with other girls he has been with before. Maybe there is something I can do to make this better?