Feeling like a single mom to be ...again

I'm 27 wks this will be my husbands 1st biological child. I have 2 from a previous relationship. When we first got together my husband would talk all the time about how he can't wait for me to be pregnant so he can rub lotion on my belly, talk to it, and kiss it. He doesn't do any of that stuff. He doesn't show any interest in naming the baby or being involved in the coed baby shower his sister is throwing. He does go to my appts and asks questions but the other day I said "I can't wait to hold the baby, aren't you excited? " he said back to me "I'll hold him but not that much" it really hurt my feelings on top of the other signs. Whenever we would have sex he'd ask me if he could ejaculate in me so he could get me pregnant or he'd text me about how much he loves me being a mom and can't wait to get me pregnant. Now that it's actually happened I feel like I'm about to be a single mom again. There's just no excitement from him he doesn't even talk about the baby unless someone points out that I'm pregnant to ask questions. Is this normal for a first time dad? I remember when I had my 1st it kinda was the same with his dad I really don't want that lonely feeling again. My husband is not a communicator. I don't know if he's stressed out about a family of supporting a family of 5 that's hindering him. He is a EMT for his day job, volunteer FF for two fire depts, and he's in the military and he's looking for another job. I stay home which is what he wants and encouraged me to quit my job. I'm just feeling lonely and discouraged.