Sex bump

So recently it has been harder and harder to turn me on. I have asked multiple times for my fiance to be affectionate when he wants sex. He just tries to always jump in right away. It hurts my feelings and makes it feel like im just having casual sex with him to meet his "needs" while i only get about one kiss from him a day. When he wants head, he just puts my hand on his junk and asks me to suck. When he wants sex (almost always when im trying to sleep), he just pulls my pants down and sticks it in. He used to be very affectionate, and he just isn't anymore. It hurts. Now if i tell him I'm not in the mood, he'll say "ok guess ill just jack off then", bc he knows i cannot stand the thought of him jacking off in the room right next to me. I feel like it's my fault partially for wanting affection beforehand, but at the same time, all i do is give affection and receive none in return. This didn't start until i was about 3 months pregnant. Any tips on getting him to understand my point of view on sex better? Oh and he also used to do all kinds of things like head, fingering, etc. Now I just get dry sex while he gets head and handjobs ontop of sex. I feel like I'm useless bc i don't even feel good during sex anymore.