I'm going through the same thing. Throughout my pregnancy my sexual appetite has been the same and even though I'm 37weeks, I still want to have sex. We haven't had sex in 2weeks because he says he's scared that something can go wrong with the baby considering how far along I am. It makes me feel pretty bad that he no longer wants to lay with me as a man and woman should but I guess I have to respect how he feels about it. Just give him a little time. He's probably freaked out that he can hurt the baby (which they can't). Men are afraid of what they don't understand.
I have so many times but things stay the same