LO is 4 months old now and has been drinking 3-4 3oz bottles at daycare. But the past few days, that hasn't been enough and she wants 4 oz from each bottle. So I'm assuming she's going through a growth spurt. I'm still only able to pump 3oz at each session (both sides combined).

So my question is how do I increase my supply to match what she needs if I don't have her around to nurse and tell my body to produce more?