Being sick after bottle

My son is two weeks old and he’s been crying for his bottle early (he’s on 3 oz) instead of going 3-4 hours he was going 2-2 and a half hours so me and his dad decided to up his bottle to 4 oz. He finishes the bottle but twice now he’s been sick about 10 minutes after his done feeding. Wondering if it’s something to be worried about? He’s be on kendamil for a week and half