Hello everyone. I'm going back to work in 2 weeks so I've started pumping to estasblish a little stock of milk. I'm concerned, however, about the amount that comes out of my right breast in comparison to my left. This morning I pumped before my 4 week old ate. I got 5 oz out of my left and less than 2 from my right! I don't want my right breast to start underproducing when I'm back at work. Now, my right nipple is larger than my left. Could this be why? If I buy larger breast sheilds and use 1 on the right will it pump better? Or is this normal. When my son eats off the right breast he doesn't seem to have a problem getting what he needs so I think its a pump issue rather than a production issue. Also I am using a Medela.