Question: how many ounces of breastmilk can a 3 week old drink?
Answer: Also around this time, your baby's stomach has grown to about the size of an egg and can now hold between 80 – 150 mL or 2 ½ - 5 ounces per feeding. Your newborn will likely gain about 4 – 7 ounces per week in the first month and as you enter the Maintenance Phase of your lactation journey.