I have been using the Medela Pump in Style since returning to work a few weeks ago. I usually pump 3 times a day. My left breast easily empties in 10-15 minutes. My right breast continues to express milk for 25 minutes, sometimes longer. Do I need to continue pumping each session until my right breast empties? This adds considerably to my pumping time. However, I am worried about reducing my supply or a plugged milk duct if I do not try to empty it as much as I can.