Sex positions/ tilted uterus

So I found out two years ago that I have a tilted uterus, it can cause pain during sex in a lot of positions. My boyfriend of 6 months recently told me that he doesn’t try anything new with me bc he feels like he’s going to get the same result of me being in pain.

Positions I can’t handle:

Laying on my back on the bed and him standing on the floor with my legs bent.

Doggy, I can gender it but he can’t tell by my face it hurts me.

Any advice!?