Why can't I get the hang of pumping ?

DO not pump that long! Unless you want to stop producing milk. If your baby eats every 2-3 hours pump while he is sleeping. Especially at night. and it is OK to supplement with formula that way you can pump. I have had to do that a few time. And it doesn't cause any problems with the baby. And if you don't have milk in the freezer than you can supplement then to. just remember to take your pump with you when you go to your appointment that way your s dont become engorged, because that can cause mastitis and that is HORRIBLE! trust me you do not want it!