My baby is 1 month old Post feed when i try to burb, I’m not able to hear the burp sound, but she wakes up from sleep What to do

A. That is totally alright sometimes you may not even feel that your child has burped but it is completely completely alright can you keep your child in that upright position for 15 to 20 minutes it just helps in better digestion even if the child doesn’t burp immediately or burps after waking up both the situations are fine