NICU supply help needed

My son was born 10 days ago at 34 weeks and is in the NICU. My supply has been really low and is not increasing. I only get around 20 to 30 ml from each breast on average. I always get more milk at 7:00 a.m., and the most I have gotten then is 50 ml a breast. Will my supply ever increase or will it just stay where it is at? It is really discouraging to pump every 2 to 3 hours and not have my supply increase, and he is now eating more than I can produce.