Many babies, but not all, lose a small amount of weight in the first days after birth. Your baby’s doctor will check his or her weight at your first visit after you leave the hospital. Make sure to visit your baby’s doctor within three to five days after birth and then again at two to three weeks of age for check-ups.
You can tell if your baby is getting plenty of milk if he or she is mostly content and gaining weight steadily after the first week of age. From birth to three months, typical weight gain is two-thirds to one ounce each day.
Other signs that your baby is getting plenty of milk:
Talk to your baby’s doctor if you are worried that your baby is not eating enough.