Husband treats me like crap while pregnant...?

I am 37 weeks pregnant with my second child. My husband works out of town and he expects me to be working a full time job still. I am a Nurses Assistant so my job requires alot of lifting and bending nad being on my feet all day. after a few hours at work I am in so much pain. my back hurts and my tummy is really tight from the braxton hick contractions i get from all of the walking, bending, and lifting. He says to me "What the hell do you do all week? You need to be working full time." "quit whining" "Aren't you going to work today?" "You did this to yourself" The only time he shows any sympathy for me being pregnant is when we around family or friends. Then he pretends he gives a crap. I have to do all of the house keeping, taking care of our 2 year old and go to work while he is working out of town. He thinks its cake walk for me and that I should feel privledged that I'm not the one gone all the time. Ughhh i'm soo tired and hurt so much I don't want to have to go to work tomorrow but if I don't i'm going to get yelled at. Why is he being this way?!?!?!