Why Is My Breast Pump Losing Suction? February 21, 2021 By Lauren Carrane Is your breast pump not pumping as much milk as it used to? Here are 6 things you can try to troubleshoot the problem. (Click below to see infographic larger). Related Products: How to Tell If Your Breasts Are Empty After Pumping What to Pack In Your Pumping Bag Am I Pumping Enough Milk?