Is it still possible for me to feed?

My milk supply is pretty much gone. My baby is 6 weeks old. He just latched on for the first time yesterday, but I have very very little milk, so he's just basically using me as a pacifier. (I am using an SNS from Medela.) I've heard Fenugreek is a good option, but I am diabetic, so I have to talk to my doctor about this on March 2 when I go in for my 6 week pp check up. My question is... I can only pump 3-5 mL of milk total from both ...should I just give up or is it possible to "make" a milk supply from practically nothing?