Spitting up?

Gisselle • Baby #1 coming July 2018!

My baby is on Similac pro Sensitive, & since today I’ve fed him 3 oz & everytime I burp him he spits up its also chunky & watery, I tried cutting him off at 2 oz but he’s still hungry. Is that normal? Should I continue feeding him 3 oz? He isn’t in pain, he doesn’t look uncomfortable to me. It just worries me that if he’s spitting up he won’t be getting what he needs from the feeding.