Yes you’ll need to get the pump and pump parts. Usually come tgt in a set. I got the spectra S1 model. I roughly pump every 3 hours, each time around 15-30mjns. If baby is very into latching then you don’t need to pump much unless you feel engorment. If you have excess, let’s say you pump enough for 3 days and baby can’t finish it’s better to have a mini freezer and store your milk into the milk storage bags. It can last up to 6 months. Be sure to label the date, time and vol.