I'm now back at work full time and have to pump 2-3 times a day, but my breasts never really feel empty. Are they suppose to? I'm only able to pump about 1 1/2 oz from both breasts each session (ea. session lasting 10-15min). I'm unfortunately very prone to clogged ducts and want to know of any tips on how to completely empty from a pump. I have a Medela Pump in Style. I'm so tired of dealing with these clogged ducts.