My baby is 3 weeks old and face constipation issues. She can go for days without pooping even though we can see her struggling to poop sometimes. She's mostly on Bm with one night feed on formula and her poop is soft mustard in colour when she finally poops. We have to help stimulate her pooping with suppositories sometimes..any parents face similar issues and any recommendations for natural remedies to help little one to poop? Thanks!