Just lurking here and I have a question. My freind just had a baby, she is 3 weeks old. Last night she was showing hunger signs only 2 hours after last feeding (of breastmilk) so she gave her some pumped breast milk, but only 1.5 oz and then wasn't sure when she was going to feed her again. My question is, when they are this young, do you just feed them on demand? And isn't there a growth spurt at this time that can make thm more hungry? DO you wait until they are a few weeks older to try and stick closer to a 3 hour feeding schedule?