Sexually frustrated ?

I am 24 weeks pregnant and I'm huge. My bf doesn't touch me anymore I feel like he is uncomfortable with my body . We still have sex but it feels more like its for his pleasure he just wants me to finish myself off. He is always complaining I don't give him blowjobs but I want pleasure too . It's just so frustrating I already feel shy about my body and this makes it worse I just don't know what to do .