She only poops once every 2 to 3 days... yesterday she pooped and it was clearly painful and it was solid. Then she pooped 4!! More times after that and it was mushy so that was good that she got it out. I figure shes constipated bc it was hard but how often should she be going? Once a day? Multiple times a day? And what can i give a 3 week old for constipation? Shes on similac soy isomil and its great for her tummy issues and acid but maybe its whats causing this? But dr actually recommended the soy bc she was having alot of issues inculding constipation on the similac advance.