Within the first 2 days of life, your baby should have minimum 1-2 wet and 1-2 solid (poopy) diapers. The stool colour will mostly be dark green to black; this is referred to as meconium. During the next 2 days you should see at least 3-4 wet diapers and at least 3 poopy diapers. From 1-3 weeks of age expect 5-6 heavy wet diapers with yellow or clear urine and 3-5 poops per day. As your baby’s digestive system develops the stool consistency, colour, and frequency changes as well. After 5 weeks their bowel movements will be less frequent but larger. These guidelines are for both breastfed and formula fed babies. If your baby is having less frequent bowel movements it is most likely normal; however, have a conversation with your healthcare provider. Contact your healthcare practitioner if your baby goes more than 6 hours without a wet diaper.
For more about your newborn baby's bowel movements, see this Q&A.