Is it him or me

I'm pregnant with my 3rd child, technically my husbands first child. We have two girls that are not biologically his. This is the first time I've had family support during a pregnancy and it has made me really excited and probably has given me high expectations.. well my husband popped that bubble. I'm 5 months and he will not and has not come to an a appointment with me even when we found out the sex he refused to leave work, but will take the whole day off for a dentist appointment. And I just recently found out he used me ( the pregnancy) as an excuse to leave work early to help some one move. But won't go in an hour late to come to an appointment with me.

Also didn't even touch my stomache or acknowledge our son until I forced him to about 3 weeks ago when his kicks became soccer worthy. And when I tried to show him the video of his heart beat he was blasé about it. He does take care of me when I'm sick, even the 2 am burger run. He does everything right, wonderful father/ husband and I know he's extremely excited, I'm not saying he isn't. I also know he's plays his emotions close to his heart even though he wears his heart on his sleeve. Emotionally he's just a big softy. But his whole attitude towards me and the extra I crave is driving me nuts. I've told him that him being minimizing his involvement make me like I'm doing it alone and I just him more active. And his response was to joke (he's a sarcastic @$$hole) that he be in the waiting room when I'm done.

Is it just me or is it him.. like is he terrified of impending father even though he is a father. I mean we got together when our youngest was 2, she is now 8. So maybe he just extras nervous because it's a baby baby or am I being overly emotional and expecting to much?