 [ Symptoms ] my 1 month old baby does not seem to be satisfied when i breastfeed him can i supplement some feedings with formula [ Disease ] the best way to answer would be to measure your baby is weight in the first month infants are expected to gain 0 5 to 1 ounces per day in terms of increasing your milk supply the best thing to do is to feedpump more often your milk production works on a supplydemand relationship the more often you feed your baby or the more often you pump the more milk your body will produce there is nothing wrong with supplementing with formula but if your baby feeds less often as a result you may find that it may ultimately restrict your supply