Day 1 potty training Charlie- one wee and a poo on the potty this morning and that’s all he has…

Day 1 potty training Charlie- one wee and a poo on the potty this morning and that’s all he has done, he’s only had shorts on without a nappy but I think he is holding it in as usually we’ve gone through lots of nappies by now and he’s been drinking, Ive just put a nappy on him while he’s having a nap. Is this normal to begin with ? 💙