sex isn't his love language, physical touch is. try to find ways to connect with him that don't involve sexual acts. if he's saying sex is his love language then he either doesn't understand love languages or he's being a little manipulative.
He is entitled to feel how he does though! You can be intimate without having sex, so perhaps you need to explore that. My partner accepted that sex was off the table for a while during pregnancy, although we did try a few times
Men don’t understand what pregnancy does to the body. If he’s telling you how he feels, make sure you’re telling him how you feel. Maybe try to compare it. Like when he has a stomach virus and spent the morning vomiting, does he feel in the mood? When he has a cold and he’s run down by simple tasks, does he feel in the mood? All you can do is explain your feelings and how you feel. It’s up to him to accept and understand them.