So we started solids at 6 months, and almost immediately we have consitipation. We have quite using rice cereal all together but still constipated. Doctor told us to try prunes for a few days but if that doesn't work we have to use a natural laxative for her. Anyone else? This is completely new to me. Andrea has never once had consitipation, but then Natalie was only pooping every 10 days while breastfeeding and I remember Andrea pooping daily in those days.