Weight and diapers
All breastfed babies lose a little weight in the beginning.
Signs your baby is getting enough milk: 1) look for the same number of wet diapers as your baby is days old (1 pee on day 1, 2 on day 2...), then by day 4 onward 5-8 wet diapers a day. 2) stool changes from black to yellow by day of life 4. 3) your pediatrician will also check baby's weight frequently the first week of life.