Feeding amount

Shy

So my baby is 12 days old and wants to eat CONSTANTLY. I formula feed him 3 oz about every 1-1.5 hrs during the day and can maybe get to 2.5 hours at night. He screams bloody murder and is unconsolable until fed. He rarely spits up after feeding.

I feel like this is a ridiculous amount to feed this often to this age. is it just me? do I bump up to 4oz??