Question: how many ounces of breastmilk should my three week old be eating?
Answer: Multiply the per-feeding amount of ounces by the number of bottled feedings you expect to need. For instance, 30 ounces divided by 10 feedings per day equals 3 ounces per feeding. If that infant is expected to eat four times, multiply 3 ounces by four to find that 12 ounces of breast milk will be needed.