I have been using the nipple shields on and off for about a week now. I noticed that while I was BFing with the shields on 100% of the time, my milk supply seemed low. I say that because my breasts just never seemed full, or felt full. Since I started trying to get rid of the shields my breast have been feeling much fuller. I have also been taking a milk supply supplement with fenugreek in it. I am wondering if they fenugreek has upped the supply or is it from not using the sheilds as much?