sex life?? help!!

So, before becoming pregnant my SO and I always had sex probably every other day if not more than that.. now that I'm 33 almost 34 weeks pregnant we NEVER do it anymore. My sex life is nonexistent... we may have sex once a month if that now, and I'm sooooooo horny all the time. I do say stuff to him about it and he says he doesn't like doing it bc he's scared he's poking the baby.. is this even real?? Should I be worried he's getting it elsewhere bc this is what seems to run through my head when I think about our sex life now 😫 I can't help it I'm sure it's just the hormones but still .. ugh it sucks being sooooo sexually driven and can't do it bc he doesn't want to. I never in my life thought I'd have to beg him to have sex with me. I am also worried he may not find me attractive anymore bc I've gained so much weight 😣😞 this is how my mind wonders ... helllllppp!!!