How much do your 7-9 month olds weigh? My 8 month old daughter weighs 19lbs and everyone else's kids her age seem to weigh 22
My bestfriend son is 1 and some months and weighs 21 pounds
my daughter weighs 17 pounds she's 8 months old
my daughter weighed about that then. not every baby will weigh the same...if your pediatrician is not concerned I wouldn't be either.
my twins were born at 36weeks and they will be 7mo on the 22nd. they are formula fed and my son weighs almost 20and my daughter weighs just under 19