K.M.
My sister has this same exact problem with her son he is 4 and in preschool. I think that at a certinage a child should not be in "pull ups" (diapers)I tell my sister to bring him to the pottie every 20-30 min have them sit for a lil bit or untill they pee pretty soon they will get sick of this and so will you but you must be persistent, I worked at a day care for years and that is how we had to pottie train kids. Just remember you cant just do it once or twice you have to do it every day untill she relearns how to use it. One last thing i get why people say they will let you kno when there ready, but she already did i hate to say it but its just her being lazy..hope i helped and wasent to blunt have fun lol cuz its hard...(i have a 19mnth old and im dredding it cuz i already know