What it is: More dirty diapers than you can possibly imagine in one day When: Early newborn period What you need to know: Frequent pooping is 100 percent normal. Some babies, especially breastfed newborns, "squirt every time they eat," says Dr. Jana. That's because babies, like adults, have a gastrocolic reflex. Simply put, it means that the act of eating triggers intestinal activity, which triggers the need to poop. But don't worry: As babies get older, they're better able to hold their poop, so you won't be changing 14 poopy diapers a day forever. Things will slow down around month two.