Please help need breastfeeding advice!!!

I gave birth 15days ago and I feel like my flow is not as strong as it was. In the beginning it hurt soo much I would alternate with pumping and once in a while I would supplement a bottle of formula cause I couldn't take the pain. Now it's gotten much better pain wise..but my son loves to sleep so I thought it's best to let him wake on his own only to find out its hurting my milk supply. So I have started taking fenugreek and mothers milk tea. I was pumping a lil over 90ml but at times now I'm getting 70 ml or sometimes only 30 between both breasts.. I am soo scared that I'm drying up. Lately I have been BF and if he is asleep pumping every 4 hrs..and I sleep about 6-7 which prob isn't good either. PLEASE HELP!!! Any suggestions??? How do I increase my flow???