RE: Help! Preschool starts in less than 2 weeks and no potty for DD!
If I were you, I'd put her in underwear, without fail, for the next 2 weeks. If she is going to succeed with this in preschool, she needs to learn to wear undies all day, and the only way to do that is just do it, KWIM? By going back and forth with pull-ups, you are sending her mixed messages.
It will be a challenging 2 weeks, but if you think that she really does know when she has to go, then 2 weeks in underwear may be enough time. Do not despair after a day or 2 in undies with some accidents. That will happen.
Do you have super special underwear that she loves? For us, the trick from getting from pull-ups to undies, was getting her princess underwear just like the princess pull-ups. That made her very motivated to wear undies and stay dry.
Good luck!
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)