Nolan is going to be a big brother!

We just found out a couple days ago that we are pregnant with a girl. He doesn't completely get the baby thing, but he does know to point to my belly when I ask him where the baby is. The other day Nolan came up to me and pointed to my belly and said, "Baby." I thought that was the sweetest thing, but then he proceeds to roar at the baby in the belly and I didn't really know how to take that. I would just like to get potty training done and Nolan in his big boy bed before the baby gets here.