My husband is really getting on my nerves

I have 4 children plus I’m 25 weeks pregnant I’m aching and so tired

But yet he wants to have sex every single day I cannot do it emotionally physically I cannot and it’s like if I say no it’s like he says f you then I’m going to sleep

I feel like leaving him because of this

My body feels battered plus I’m not a huge fan of sex anyway

It’s really upsetting me it’s like he doesn’t care what I’m feeling sooooo fed up