My five month old has been pooping less than usual this past week. Usually she will go at least once a day now it's every two to three days. I've called the pediatrician and they told me to give her apple juice so I did and it did help that night and next day, but the day after that she went back to being constipated. Now it's been almost three days since her last bowel movement. Is this normal??? She's exclusively breastfed and I haven't introduced any solids.