You've probably diminished your supply because you're giving him formula. What you need to start doing is pumping your breasts... a lot ... AND let the baby nurse on one breast until it's empty and then at the next feed let him nurse on the other breast. Just feed him on one breast per feeding and let him EMPTY it. You should also stay hyrdrated... drink lots of water and make sure to eat a healthy diet. For every bottle of formula you give him you need to pump your breasts. You need to increase your supply again. Ideally you should just be straight nursing from your breasts. But if you're momentarily not producing enough milk then you should work hard at nursing the baby and making sure he's getting enough to eat. Formula messes everything up though. If you just nurse your son on demand... then you should produce more then enough milk for him.

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