Still don't believe I'm pregnant??

I'm 37 weeks pregnant with my rainbow baby. I had 3 losses, fertility meds, and almost 2 years of trying to get to this point. I'm so happy, don't get me wrong, but I don't really feel a bond with my baby. In fact, none of this really seems real yet still. His nursery and clothes and everything is all around me but it still doesn't seem real. Will this feeling go away once I have him? It's hard to explain. Like, I am really excited to have him, but at the same time it almost feels like it's happening to a close friend and I'm waiting for her to give birth, not like I'm going to meet my own son. Does that make sense? It all feels very unreal I guess, maybe like I just haven't gotten my hopes up.