Hey Mr. T,
I had to compare you to your brother, you are heavier than he was at 4 months... and shorter.
Weight: 17.4lbs - 90th percentile
Height: 25" - 50th percentile
Head: 75th percentile
You have hit all the important milestones as well! You have been such a happy baby! I cannot believe how fast time has flown by. You sleep like, well a baby, and you babble a ton. Last weekend you had your first real babysitter, Laura. She tried to give you formula... you weren't impressed. Good thing I have no plans to wean you anytime soon.
Love Mama