My ds has just started to eat properly, as opposed to reluctant sips of baby rice. He's eaten three bananas and a pear and no sign of any poo - given the size of him (titchy) and the relative volume of food he's eaten, when should I start to worry that he'll burst? (He's still drinking loads so don't think that's the problem). He's never been very, um, regular and I'm just worried that it's going to be horrific when it does happen. How many days did your small person go without going, iyswim?