Husband doesn’t seem excited?

I have miscarried twice, he’s admitted to being upset when this happened but tried to hold it together for me. I am now 20 weeks pregnant with our miraculous, miracle rainbow baby girl and he just truthfully doesn’t seem excited as I see some other dads are. He has two daughters with an ex girlfriend, 12 and 13. He was not a very active part in either pregnancy but I can’t help but think he lied about that and was more involved than he said which is why he doesn’t seem all that thrilled? This baby was very much planned, I guess I just expected him to act differently. I can also recognize being very pregnant that my emotions are pretty squirrelly. I just want a more excited husband!