I was the same way so worried about keeping up while at work since i didn't respond well to pumping. but honestly once my son started eating more food & i started giving yogurt & water he only really drinks a bottle at night to go to sleep. he does all day without asking for one if I'm not home. if I'm home he'll confort nurse. p.s. when i say all day without milk i mean the 8 or whatever hours I'm at work not 24 hr. i told my doctor & he said he's fine. i also waited until 6 months to start food & water.