my baby is 17 days newborn. he is recently puking many times after he has milk. I make him burp also. but yet he does it. what can be the reason

A. It Is basically stomach reflux which is common with all the kids after birth for first six months after birth you will see it’s very common with kids because I mostly lying down they do not have an activity and also which is why it’s not very easy for them to digest food which is why it comes out like this