My baby is 53days old now a days while taking bottle feeding she is irritated and crying… changed formula milk powder aptamil preterm to stage 1

A. hi dear Your newborn baby's belly is tiny. He or she does not need a lot of infant formula with each feeding to be full. You can start by offering your baby 1 to 2 ounces of infant formula every 2 to 3 hours in the first days of life if your baby is only getting infant formula and no breast milk.