Sex while pregnant

So am 20 weeks pregnant, we want to keep our sex life active even though am pregnant, but it hurts so much, I feel like a virgin again 😂

I dont know whats causing it, we always had great sex but now that am pregnant it hurts a lot, hubby can’t enjoy it because he doesn’t like seeing that am hurting so he finishes quickly or we end up with a hand job

Anybody knows why it hurts down there?

Or anybody with same situation?

I haven’t had the guts to ask my doctor yet 😂