How long until breasts are full again?
If I feed my baby then pump both breasts until no more milk comes out of either of them, how long do I have to wait until my breasts are full with milk again?
Breasts are never truly empty and will adjust to supply and demand from the pump in the same way they adjust to your baby’s needs. When your baby feeds every two hours the breasts will be ready for them (full again) at that time interval (if everything is going well). Therefore if you pump every two hours there will always be milk there every two hours, but there will be milk there at one hour too because breasts are constantly making more. If your baby starts feeding every hour instead or if you add in pumping sessions between feeds on a regular basis, the breasts will adjust to the new demand and increase production. So the question “how long until breasts are full again?” is therefore quite difficult to answer because ultimately they fill according to the demand. Pumping after feeds until they are empty is a great way to boost your milk supply, but if done too often when your supply was actually fine you may end up with too much milk and be stuck in a cycle of pumping to keep up with it all. There is more information about pumping in How to Increase Milk Supply When Pumping.