When housebreaking your puppy there may be times when she just won't "go", but then you will let her in and she will go in the house. Don't get mad, because she is still learning. If it takes up to 15 minutes, then it takes up to 15 minutes. Be patient. If, after 15 minutes she still hasn't gone, put her in her crate for 10 minutes, then try again. Reward her heavily when she finally goes outside (and reward her outside, not after you get back inside, or you will send a mixed message). If she does go in the house again, grab a newspaper, roll it up, and hit yourself in the head because you were not patient enough!
Jeff Dentler, CPDT-KA, IAABC-ADT, FFCP, CTDI