It happened to my cousin’s wife, she tried really hard but it just didn’t work out for her.
I remember with the first baby, in first few days only few drops were coming out and I was kinda worried and actually tried out the formula milk but then the midwife told me that for new born babies even a teaspoon is enough as long as you feed them every 20 or 30 minutes.
I know some people don’t recommend breast pumps, they prefer the natural way which is suckling". But if you’ve tried that already and it still didn’t work out then don’t feel bad about it.