Sex 32 weeks. Please help.

So my SO and I had an awesome sex life. Honestly it was the best ever. Well I’m currently 32 weeks pregnant and we don’t have sex at all. I really want to it’s just I can’t figure out how to go about it anymore. I feel like it’s just so awkward. We can’t find a position that works. And we have pretty much just stopped trying. I just feel so big and gross. I know if we could just spice things up a bit I’d feel so much better about myself. He just seems so uninterested. 😥 I just want him to make me feel good again. And giving him a blow job once every few days isn’t helping my self esteem. Help!