I have 6 weeks baby. She has not pooped from 2 days.

A. Constipation is Rare in Breastfed Babies Infants older than eight weeks often go 4 or 5 days without a dirty diaper, and it doesn't mean they are constipated. Breastfed babies, especially if they have not started solid foods, can easily go two weeks without a poopy diaper once they are 2-3 months old.