This post is a month past due, I took his 4 month pictures and never got them uploaded. So here they are:
At his 4 month check up he weighed 14 lbs (25% i think), 25 inches (40%) and I don't remember his head circumference but it was in the 75%. Poor guy, he's got big head problems. This month was such a turning point, he interacts so much more, is aware of his surroundings and really knows who his mommy and daddy are. He celebrated a new year, finally fits in his cute big boy clothes (i.e. jeans), and moved up to a size 2 diaper. On his 4 month birthday we started sleep training him, update to come on his 5 month update. (Don't hold your breath it's not too different).