So when baby is feeding normally, diapers will show regular signs of pee and poop. But don't be shocked if the poop changes color – and develops a disturbing odor – when you begin formula ...

A study of more than 1,000 healthy babies found that almost half had green poop for at least a week sometime during their first 4 months of life, whether they were breastfed or formula fed.

With so many diapers to change, the first few weeks and months with your baby may seem all about pee and poop ... baby to baby or if they're feeding breast milk vs formula. Stools of breast ...