FTM here and having a rough time with BF/pumping. Little one is almost 4 weeks. Everytime I try to pump the MOST I get is 2.5 oz. combined from both breasts. This doesn't seem like a lot to me. Is this similar to what you guys have been getting/got at the 4 week mark? My little one never seems to be full when I feed him from the breast either. TIA