If you find your child is sporting a dry diaper after nap time, especially a few days in a row, it's time to take a deep breath and jump right in. Staying dry for two hours or more shows increased bladder control, meaning she's ready. Potty training is part of your child's development, which doesn't always go as planned. So if things don't work out at first, don't worry about it — and don't add extra stress on your child by forcing it! Take a break, and start again in a couple of weeks.