Is this enough???

Ho

I don't pump often, just here and there. I'm just doing it some to build up a small stash, so eventually daddy can feed or I have the choice of not whipping a boob out in public when we decide to introduce a bottle in the future

My little one is 5 weeks tomorrow. I know he eats plenty with how many wet/dirty diapers he gets and he's gaining weight. But, I'm just wondering if 2 oz per breast in a 20 min session is good??