I can't believe my baby is 6 months old already! Everyday Spencer is doing something new! He is eating more fruits & vegetables; trying to sit up on his own; has discovered his voice (babbling, screaming, screeching, etc)! At his 6 month check-up, he weighed in at 17lbs 12.5 oz (50th %tile), and 28 inches (90th %tile). However, a week later when we took him back for a cold, he was weighing in at 18lbs 3oz. The pedi said that it's expected for a baby to gain about a 1oz a day for the first year.