You have anal sex when you don't want to and you're pregnant.
She didn't say it was during pregnancy, I don't think.
However it still sounds like op did it, and forced herself to tolerate pain & unpleasantness because he wanted it.
Everything seems to ve about what he wants op, about satisfying him, pleasing him, being enough for him.
It's not an equal relationship.
You've already said he won't give you oral sex even though you give him, he can't be bothered.... you've dlready said he's focused on him getting off.
Hes shit in bed. He sounds pretty fkg rude etc out of it. Shit communication skills.
You're here going "I'm pretty, im told I'm pretty, I do what he wants in bed, I satisfy him, so why this, why that"
Wrong focus.
Does he satisfy you, is he good to you?