Growth SpurtsSome babies seem to grow in more obvious growth spurts, in which they don't gain any weight for a week or two and then gain a lot of weight over a few days.
These are the baby's that have the classic growth spurts that actually affects their eating and sleeping habits. A breastfed baby going through a growth spurt, for example, may go from three hour feedings to wanting to nurse every two hours. If you keep up with this extra demand by breastfeeding your baby more often, you will likely quickly build up your breast milk supply so that your baby gets more milk at each feeding. She should then go back to her usual nursing schedule after a few days.
If your formula-fed baby is going through a growth spurt, you should usually offer more formula at each feeding. So if he was drinking five ounces of formula every three hours and began getting hungry after two hours, then you might try giving six ounces at each feeding.