Bf doesn’t even try to hide the fact he’s not interested in this pregnancy. Was anyone else’s bf like this ??

Was anyone else’s bf like this during their 2nd pregnancy or any of their pregnancies?? My bf and I have a toddler (boy) and I’m pregnant with our rainbow baby who is a girl. I thought he wanted a girl and would be happy that we were having one because he actually wanted our son to be a girl before we found out he was a boy. But he apparently wanted another boy and seemed upset that baby is a girl. Idk if the gender has anything to do with him being this way, but he completely ignores me every time time I say anything about the baby or my pregnancy in general. He wouldn’t even tell his mom the gender, I told her. Idk if he’s told any of his friends about my pregnancy at all, he doesn’t speak about it to me or anyone else. When we are in the store I sometimes go to the baby girl section to look around (because I’ve always wanted a girl and can finally go to that section now) but he gets annoyed and will huff and puff, rush me saying things like “come on” “we’ll start baby shopping later” but “later” has yet to come. We have nothing for her except for some clothes my sister gave me from her daughter outgrowing them. I get that sometimes it doesn’t hit guys until the baby is born but he wasn’t like this during my 1st pregnancy so I don’t understand what’s different this time. Idk why he can’t at least pretend to be excited or the least bit interested. It’s starting to hurt my feelings and honestly piss me off. For example we were on FaceTime earlier and having a whole conversation he was replying to everything I said UNTIL I told him our son was laying his head on my belly and baby girl was kicking him and he just went silent and acted like he didn’t hear me. He said “huh” I repeated myself and he again just stopped talking, acted like he didn’t hear me and just stared at me on FaceTime. I kinda laughed awkwardly and said “no comment?” And he just put the phone down and I hung up. Then we were texting after we got off FaceTime and I was talking about my storage on my phone being full and told him I lost some of the pictures of our son because my phone keeps deleting things. He was responding about that, texting me back the same minute I was sending my texts until I made a joke and said something along the lines of “it’ll do no good to free up storage because it’s gonna get full again when she’s here since I’ll be taking so many pics of her” and he literally stopped responding. Ignored me. I text 2 more times and still no response so I just dropped it until he got home. I just don’t understand and every time I tell him this is bothering me and that he makes me feel almost stupid for talking about the baby he just goes silent or says “idk what you expect me to say” like ??? Did anyone else deal with this?😒 I’m starting to think he’s just never gonna come around and acknowledge her.