I have been pumping milk for a week after baby due. My milk supply for 1 bottle has been always capped at 50ml and can't seem to go beyond the level. What do I need to do? I am using spectra S1 pump and set it to massage mode level 5 for now

You can try either power pump or pump after latching for 5 to 10 minutes to simulate more demands. Breastfeed is based on supply and demand. However, don't over pump as oversupply will cause another set of issue.

you can do power pumping. how often are u pumping? for first month best to pump every 2 hrs if baby is not latching

try to latch on demand and do power pumpimg even if little milk comes out.