Q. My 9 week old puppy uses the bathroom outside and then goes again as soon as I bring him into the house. Is this normal?
A. Puppies are good at getting distracted and forgetting to empty themselves completely. Try taking him to a low distraction area and stand still, he may stop and go a few times before getting completely empty.
Also feeding on a schedule will help you know when he has to go. Keeping a chart that tracks when he goes can help you get him out on time and see your progress.
If you keep a chart and it seems like he's going excessively (pups go a lot, but there's normal puppy a lot, and way to much) the chart can also help you and your vet determine if there may be a medical issue going on. An underlying medical issue such as a UTI will impede even the best housetraining efforts.