FTM. My princess was born early at 29w3d. 3lb 1oz 16.5 inches long. 10/10/16 3:17am

I have been trying to pump for her since she doesn't yet know how to nurse and requires a feeding tube. I went from being able to pump nothing to 2ml this morning (: but I'd like so advice to keep increasing my supply. Also I am only getting breast milk from my right breast, any advice on how to get the left one producing?