Advice on feeding

Anne

Im a first time mom with a 10 day old lo. Very healthy baby. Unfortunately, he does not latch although I pump every 2-3 hrs my milk production is very low not even good for one feeding thats why I had to give him formula. We started with 2 oz every 2-3 hrs. It has increased in the last couple of days to 3 oz every 2.5-3 hrs. I noticed lately that he’s been begging for more after 3 oz. He would spit a lot of milk once in a while could be the reason why he’s constantly hungry or might also be a sign of overfeeding. Im torn between feeling bad for not giving him extra milk and trying not to overfeed. Who else here has a baby thats constantly hungry? what do you parents do? Help!