Breastmilk booster

Hi, anyone tried momma pregolact? I'm now 20days postpartum. Can anyone suggest or recommend a good way to increase breast milk? I really want to breastfeed my baby but I feel like my milk is not enough for him. I had to give formula now. I'm still trying my best to breastfeed but don't know if it's enough for him or not. Tried pump, every time getting only 1oz. And if I pump the next few days I feel like I don't have any milk. I'm eating every healthy food that my mum gives to boost my milk. Still feel like it's not producing much. Kindly advise! 🙏 #firstmom #firsttimemom #bantujawab #ingintahu