Is your baby getting enough to eat?
Generally, formula fed babies eat every 3-4 hours during their first weeks, while breastfed babies eat every 2-3 hours.
Proper weight gain is the truest test of whether or not your baby is eating enough. Here’s another test—count his wet diapers. If you get six or more per day, and your baby is happy between feedings, he’s likely getting plenty to eat. Don’t try to force him to continue feeding when he’s not hungry.
Formula feeding. How much? How often?
If you are exclusively formula feeding, here’s a guide to how much and how often you should feed formula to your baby. But remember, these are just averages—your baby’s appetite is always the best guide.