Am I in the wrong?

I’m 30 weeks pregnant and have little to no sex drive and I’m already starting to be in pain getting later into pregnancy. I don’t give my so blowjobs often in the first place because we usually get down to business and just have sex. I was put on pelvic rest for 2 weeks due to my cervix measuring short when pressures applied so no sex until my next check up. My so makes me feel so bad about myself because I don’t do anything for him. He still gets it but me just being nauseous or in pain or even exhausted I don’t want to do it whenever he asks and when I tell him not now he just gets mad at me and walks out of the room and doesn’t say a word to me and it makes me feel like such a shit girlfriend. And being pregnant I’m so emotional....Am I in the wrong here..... or is him making me feel like this make him in the wrong....?