Is constipation in babies normal? My 1 month old girl has constipation and doesn't poop every day and her stomach feels hard?

What is constipation. In a one month breast fed baby no poop for a few days is normal as long as the poop in not hard. Babies in the first month or so have frequents pooh so this change to less frequent pooh causes much worry but is normal regardless on apparent straining. At this age babies also have periods of unexplained crying which sometimes are attributed to gas or trouble with pooh. This is not the case!
Constipation. If you are breastfeeding, your child can have a stool with each feeding, go once a day or go as long as a week without having a stool. The child is not constipated, but a peculiarity of breast feeding.