This can vary so much based on your OWN baby!
Some babies poo once a day
Some babies poo multiple times a day
Some babies poo every other day
Some babies poo every few days
And crazy enough, some babies can go a whole week between poos!
Just make sure your baby is not constipated or in distress about it.. soon enough you will learn their cycle, what their dirty diapers should look like, etc.. and that's how you learn what is THEIR normal!