I'd recommend fenugreek and make sure you have enough protein in your diet. The fenugreek needs to be taken for at least a few days before you see results. Its also not just about making enough milk, its also about making sure its the richest for your baby (thats where the protein comes into play).
I also wrote a blog about coconut water and all the benefits for nursing mothers that has. Check it out.
Best of luck! Props to you for keeping at it.
I feel your pain! I absolutely hate pumping but my 10 month has been refusing to nurse for over a month. I've been trying to keep my supply up with every trick in the book. If you ever need to talk feel free to chat with me. =)