Oh ewwww. Yeah, mines' been driving me NUTS too. During the week that I didn't realize I was pregnant (I'm sure you read my complaining about the Kaiser craziness!), he just "shut off" meaning he pretended everything was normal and it just wasn't for me at all, I wanted some extra hugs and didn't get them till he apologized.
He's on top of it now though, let me tell you. He is even indulging my new fruit cravings and taking care of the 3yo while I lie down. Keep letting him know how your feeling, that's been working for me. And about help when the baby comes, oui am I worried about that. Might just ask my sister to stay and help out because the first few weeks are SO overwhelming!