Should my lo be eating more ?

mamabeartoRo

So my son is 4 mo and weighs around 17 lbs. hes eating 4 oz every 1-2 hours it's hard bc when I need to go out for errands I don't have that long due to the fact he's eating every 1-2 hours. I once gave him 5 oz but he spit up a lot. I know every baby is different but how are you ladies doing with your feeding schedule ? Btw he's formula fed