How many pumps?

Adrianna • Mommy to a 6 year old little girl & newborn baby boy :)
I'm averaging about 4-6 pumps a day & I nurse 1-2 times a day. Is that enough to keep my supply up? Should I add a pump? My supply is doing fine keeping up with my baby now, but I don't want it to change ones he's bigger. He's 5 weeks old.