When babies are first born they will urinate more often and can have as many as 10 wet diapers in a day or they may wet once every hour which is normal.
But some babies may only wet a diaper every three hours which is also normal as it depends on the babies fluid intake as well.
And sometimes babies pee up to 6 times per day and as long as your baby is urinating 6 times per day or has at least 5 or 6 wet diapers in one day then your baby is likely healthy but if you're just not sure and want to be sure then you can take your baby to the doctor.