Baby Tips: Regardless of whether you opt for reusable or disposable diapers, it is recommended to change the baby's diaper every 3 hours or so. On average, this amounts to around 6 or 7 diaper changes per day for a larger baby. However, newborns may require slightly more frequent changes, especially before their digestion fully develops, as they tend to poop after every feeding, usually up until around 2 months of age.