Boyfriend Acting Different

Has anyone else's significant other started to act a little rude to you since you've gotten pregnant? I am dealing with MS and can't do much in the day and my BF seems really fed up with me. He avoids talking to me and just stays on his phone or watching TV when he's home. I feel like he's mad at me that I don't feel well but he denies that he is. I just wish men could understand what this feels like. I would like to be able to go out, cook, have sex, etc. but I simply can't right now.