Decreased sex drive

Since becoming pregnant my sex drive has decreased tremendously my SO feels as though I used him for a baby which is not true at all I literally just don’t want sex I find it weird while pregnant he has called me dumb said I need to get my shit together he said since he deals with my attitude and I barely talk to him he deserves sex (I barely talk because I’m always sleep) I feel like we need a break at this point what should I do