Milk supply

FTM here. I’m hoping to breastfeed but I truly just believe that fed is best! I was wondering if I should start pumping a few days before my due date (if I even make it that far) to make sure my milk supply comes in? I know it’ll come in a few days after giving birth but I’m obviously really nervous about baby being really hungry and not getting enough. I know that their stomachs are tiny in the beginning and won’t need much more than my colostrum but I’m still worried. Any advice? I seriously have nothing against formula btw. I just want her to be fed and happy but this is an experience I’ve always wanted.