Feeling like a failure to my baby

J

I haven’t been able to produce much for my baby to get full. She’s currently 3 days old and I’m desperate to know anything that can help me produce milk for her to be satisfied. I tried pumping but nothing comes out ... not sure if I’m doing it right but will be asking again tomorrow at my appointment. Nipple hurt sooo bad when she latches on to me 😫 any advice ?