Growing too fast

How did my baby grow into a boy so fast????? The scratched up knees and elbows get me every time! I can't believe my baby is this big and in just 30 days we'll have a newborn in the house....it feels like yesterday we brought Little Guy home and then I blinked and he's jumping, climbing, talking, and growing up way too fast! Baby #2 better know to slow down this whole growing up thing!!!