I know it is normal for breastfed babies not to poo for a few days, but how long before I should start getting worried? DD2 (5 months) has always been an irregular pooer - when she is well she generally poos every other day, sometimes daily and sometimes she goes 3 days between poos, but not much longer. However, she hasn't pooed now since Tuesday morning, which is the longest she has ever gone - at what point does this become abnormal? She is otherwise well and happy.