Fed up, hurt, and confused

So my fiance and i got into a fight tonight about how unsupportive of my pregnancy he is. He is always asking/expecting me to be able to do everything i could before i was pregnant. I tried to explain to him how much of a struggle it is to be pregnant. The constant pains, and aches. The fact that just sitting, or even walking hurts and is a struggle. And what does he do? He says that thats how he feels with his joints everyday. He compares his pain with mine. I tried to explain to him i wish thats all i am going through. He is just so unsupportive and never is sentimental especially when i need him to be. Now he has me in tears as im writing this and thinking should i really be with him if this is how he is to me while im pregnant with our son and my due date is saturday....