how much should i be pumping?

Ha

My baby is 11 weeks. I'm pumping 5 oz. a day (morning) in one sitting. The rest of the time, I just breastfeed her directly. My right breast produces more milk than the left. (4 oz on the right, 1.5 on the left). How can I even them out so I'm producing an even amount per each side? Should I be pumping more?