Snapping pain during sex?

So me and my SO can't really have sex because I feel this painful snapping sensation. It happens as he's trying to enter and keeps happening while he's thrusting (trying to go in further). It sort of feels like when your hip is trying to crack, like the tension before it does, and then it cracks. That's sort of what I feel, but coming from his penis. He says he doesn't feel anything. Ive looked it up and maybe it could be that he's hitting my cervix? But no one said it felt like a pop, more along the lines of pressure. Or maybe I have a tilted uterus, although I don't see why that would cause snapping. Please any advice??😩