You will begin to see an increase in the amount of milk you are able to pump after a few days of using Nurture regularly! Milk supply works on the general principle of supply and demand. Nurture will help you empty your breast more completely, resulting in more expressed milk and in response, your body will replace the milk that has been pumped in order to meet the feeding demand of your baby. It is recommended that until you establish the desired amount of milk production, that you continue your pumping sessions for the same amount of time that you pumped without Nurture. Once your milk supply is stable, most people find that they pump for significantly shorter time while using Nurture.