First time mom of 2 Month old here. Hello All 😊

I am in need of some momma advice about my milk supply.

When LO was born I was concerned about not producing milk that I pumped all the time especially since she was in NICU and I had to leave her for a day there over night and they gave her formula. So I kept on pumping and feeding pumping and feeding To the point that by her 2 week check up I was producing a total of 9oz even after having her latch. My Pediatrician told me to try to slow down because I am going to spend all my time pumping and feeding and will be so uncomfortable due to engorgement. So I slowed down. Now I am heading back to work in2 weeks and I am trying to get my milk supply up to where it was. She is not feeding every 3 hours and I no longer wake her up to feed. So sometimes she goes 6 hours sleeping. So I pump. Sometimes I pump and it's only 2 ounces total and she wakes up hungry and I put her to latch then bottle feed the other 2 ounces. I feel like it's not enough and she's hungry still but I don't have anything else to give. And I cant explain why but hubby & I do not want her to have formula. So how can I speed up this process??? I am trying to pump as much as possible but then like I said I run the risk of her not having anything to eat. Help 😖😖😖