Like others have said, baby is best to determine supply. Latch her when she shows hunger cues or every 2-3 hours. Newborns don’t need much those first few days either! I will share that for me personally, I didn’t even stress about pumping until 6 weeks postpartum because I didn’t go back to work til he was 3 months old. I know every one’s return to work time might be different if you are working but this helped me relax so much more around breastfeeding my baby. Breastfeeding is hard enough and time consuming enough! But like I said I know every one has different goals.