Breast milk supply

Emma

Hello, I am 7 weeks post partum and I have been trying to increase my milk supply. I have been supplementing with formula because my baby wasnt gaining weight. I wanted to breastfeed only. I'm really struggling feeling okay with feeding him formula. I only get about 1 ounce to 2 ounces when I pump. I feel like I have tried mothers milk and I am pumping. Now I'm trying lactation cookies. Does anyone have any suggestions?