It could be a number of things. Pelvic pain during intercourse is linked to several different conditions. I would suggest talking to your Gyno about this. It could also be a warning sign of something very serious. Could also be that he may not be a good fit for those positions with you due to his size. He may be hitting your uterus(not good)
questions to aks yourself...
1. Have you ALWAYS had pain w/ intercourse?
2. Are your menstrual periods painful?
3. Do you have low back pain afterwards as well?
I'd go see my Dr.
Hope things work out!
it could be that he is hittin u from the inside or that u need to stop being so tense. ive had the same pain wwhen me and my fiance have sex. if u relaxe and enjoy sex it wont hurt or wont hurt as much..
i hope i could help u.
this can be due to low cervix. google it and it will explain to you about the cervix..i have the same problems sometimes and its because my cervix is low.