Is something wrong with me?

I'm 23 weeks pregnant with my second, a baby girl. I have not been able to process that I'm pregnant and will be having a second baby. It's a very strange feeling. I also could not process my pregnancy with my son, but it felt more real with him. However, when he was born I was in complete shock. When they handed him to me after birth, I didn't know what to feel or say. It took a few hours to feel a bond, but it did happen. Of course I love him and all is well now, but I can't help but feel like something is wrong with me. Why can't I process that I'm having another baby? It just feels like a strange out of body or dream like thing. Maybe I'm just staying somewhat distant since my pregnancy is very high risk and I'm scared to form a bond