3rd trimester sex....

Soooo since becoming pregnant my sex drive has hit an all time high and I want sex all the time. I'm a newlywed and before becoming pregnant we were having sex like we couldn't get enough of each other. Like 2 times in one day all the time. Now since being married we have sex once or twice a week. And it's really frustrating to me cause I'm pregnant and I'm 32 weeks and have gained 30 pounds. And I feel like that's why it's been so crappy and it makes me feel really bad. I rarely initiate sex with him for that very reason. I don't want to get rejected and feel stupid like he can't get hard cause I'm a whale now. 🐳🐳 I've rarely been one to initiate having sex cause he's always been ready to jump my bones before but now it's just like nonexistent. it has made our relationship sooooo awkward. And I know it's not a lack in his sex drive cause that dude is always horny. What do I do?!! I just want to have sex with my husband without feeling stupid. 😔