My husband doesn't want to have sex

Hi, im seven months pregnant and my husband doesn't want to have sex and if we do he either last 1 min or he gets distracted very fast😔 he is always holding my stomach and im like,,, she is fine nothing is going to happend to the baby but he just doesn't get it, im frustrated,angry and i feel that he is not attracted to me anymore😔 even tho he keeps telling me how beautiful i am to him.

I have talk to him about how i feel and he tells me im sorry idk why i can't concentrate i try my best and how he is always tired because of work, he does helps me a lot inthe house too so idk if im just being a big bitch or what..