Does my sons tummy look normal?

Miriam

Does my baby's belly look normal? He is almost a month old, eats 4 oz  every 2-3 hours (formula fed) and only poops 1-2 times a day, but when he does poop, it's a lot. He does pee plenty though, very wet diaper with every diaper. I was changing him and noticed how big his belly looks! Is he just a little piggy?