15 Weeks!

So I'm 15 weeks with my second baby. I *thought* I felt it move last week but who knows if that was the babe or just gas. Lol! So do any of you just not feel pregnant anymore? Like. Of course I'm showing and everything. But I just don't feel pregnant. I don't feel like I have any sort of connection or even have a feeling of what the babies sex might be. Everyone says it's a girl but I just don't feel anything.