Bf is too big…. 🤦🏻‍♀️

Je

I know this seems ridiculous, but I have a new bf and our sex is amazing, except that he is so big that it’s actually painful when he goes too deep. We’ve tried different positions, legs down, pillow under my back, him trying to not go too deep…. But it inevitably ends up being painful (in the middle of my abdomen all the way up to my belly button). I guess he’s just hitting my uterus?? Is there any way to resolve this medically?

I am 47 and already have 2 kids, not looking to have anymore, so definitely considering the possibility of a hysterectomy or something else.