Hi, I just joined and I had already considered just throwing her into some underwear and watching her, she's 21 months old right now and tells me when she goes peepee and poop in her diaper so I've been trying to work on here, but i haven't actually spend a whole day with her in underwear. Has any one had this method not work? or did it take a lot longer than 3 days? I know that all babies are different, I'm just kind of curious on what to expect. thanks.