My sweet LO is 16 days old and has been EBF. I need to start pumping to prepare for going back to work soon but idk how you go about getting started.

I have the Medela pump. As of now when my son BFs he does an average of 20-23 minutes on one breast every 2-4 hours (more often during day, goes longer at night usually). I alternate breasts every feeding.

I’m worried if I pump the one he isn’t feeding on it won’t refill in time for his next feeding. So do I start by pumping the breast he feeds on right after he is done? I just don’t know how it works and don’t want me starting to pump to make it harder to feed him till I get a supply banked up.

Please advise!