A baby can go up to a week without eating anything. Do no worry about him getting enough nutrition at this point. Keep working on latching him on and pumping. If you are having trouble, try using something other than a bottle. If he gets used a bottle, he may refuse the breast because a bottle is easier to get milk out of. The milk you are getting now is colostrum and it is very important that your baby get it. Even though it is only a small amount, it is very very very dense in nutrients and fantastic for baby.
I had the same situation in the hospital with my first son except that he had low blood sugar and his body wasn't regulating it like it should so they supplemented him just a little in the NICU. But the more you supplement, the less supply you are creating on your breasts. Make sure you pump every time he eats and try to always give him breast milk. Try to latch first, then if it isn't working out, pump and give him what you pump.
I would get to a lactation consultant ASAP for the latch issues. there is great info here on latch: http://www.kellymom.com/newman/26baby_refuses_to_latch.html
and the videos here may be helpful
http://www.thebirthden.com/Newman.html
If you can't afford an LC, call LLL and see if you can get a leader to do a home visit. It is essential for BF to work for these issues to be worked out early. My son finally did start latching correctly but not until he was 4 weeks. I didn't supplement once I got home, just fed him what I could pump and pumped every time he fed, but not all women respond to the pump that well. Drink lots of water and make sure you are getting enough nutrients. I don't think I would take any herbal supplements until your milk comes in cause you don't know yet......you will know when it comes in cause ALOT comes in and you will be uncomfortable. TAking a supplement now may make it come in even more full force and make you very uncomfortable.
Good luck! I know how frustrating it is!