Nursing on one side

Lillian

I now have to pump my right breast because my 6 week old refuses to nurse on it and only does the left. My right produces a lot more than my left does so I'm thinking he prefers the left because he doesn't actually wanna eat and just comfort nurse? I dunno I'm just a little lost and don't know what to do. He has no issues latching to the left at all, but as soon as I try the right he fusses and won't take it at all. I've even tried positioning himself so he's laying on the same side as he would if he were on the left breast and still no luck.