How tall are your babies at 4 months? My little girl seems so tall and is growing out of her 3-6 pants but not the shirts. It's because her legs are too long. Her legs are also almost too long for her carters 0-9 month sleep sack. Her dad is 6'4 and his sister is pretty tall too. I find out length next Friday. She is also starting to get too long for rocker. Does she look tall for 4 months?