Should I pump daily?

bikitybinx

I am trying to get my EBF DD to feed from a bottle.  What I will do is pump from one side one day, take whatever I have pumped and break it out into 1 oz portions and then refrigerate it for 3 days, attempting to feed her each day via a bottle.  I will not pump again until after I run out of the refrigerated portions.  This means I may go 3 days without pumping.  Is this messing with my supply for DD on the days I pump?  Should I pump daily to build up my supply, just so that I am not depriving her of much needed milk?  For example, today I pumped almost 4 oz ... does that mean DD got 4 oz less than usual today because I pumped it out?