My spouse doesn't act excited about our baby: Advice?

I’ve come for some advice and also just somewhere to vent. I’m 9 weeks pregnant today, super excited. This is my second child! My partner and I both have a child from a previous relationship. My last pregnancy was nothing of bliss, between working the whole pregnancy, to having no help and being on my own emotionally. I had my son and he came into the world struggling. It gave me PTSD because of how horrid the whole pregnancy/labor went. This pregnancy has been great! I have a great partner and two beautiful babies who I adore. However, lately I’ve been kind of feeling almost awkward lately. My partner was so excited at first, but now it’s barely a thought. He’s more worried about the other things in our lives, and I do agree they matter. It just sucks; he was so proud of his daughter. Posted about her throughout his child’s mother’s pregnancy, they have the pictures still plastered all over the internet. He just showed so much excitement for her. This pregnancy, though, he’s barely been active… He doesn’t ask about the baby or anything. Barley when thinks about it unless it’s to tell me we need to work on budgeting and stuff cause the baby will cause us to work a bit extra. I’ve tried to keep optimistic and just boil it down to that I’m just not far along yet and that he’ll be more interested when I start showing. But that’s not the case… there’s no interest. It’s really starting to hurt my feelings, and I don’t know how to bring something like that up. I don’t want it to turn into this thing where he thinks I don’t love our other children. I just wish he’d act like he was interested in this one like he was with his daughter. Not give me this excuse all the time that “we have two kids, things were different then.” Feels like a slap in the face. I appreciate you guys listening. I struggle so hard with my anxiety sometimes. It just feels like me and this baby aren’t as good enough for him as his last pregnancy was…