Stools in babies less than 6 months: what’s normal? Since your infant is on an all-liquid diet, soft, squishy poops will be the norm for a while. It can be watery. It is not diarrhoea. Babies usually make up to 10 dirty diapers per day for the first couple of months, and then go two to four times per day until around 4 months of age—though this can vary a lot between babies, and pooping outside of this frequency is not necessarily cause for concern. The timing is thanks to the gastrocolic reflex