I think the most important part of housebreaking a pup is routine. When I was housebreaking my two pups they were on a strict schudule, infact, they still are. Pee at 5:30am, eat at 7:00am, pee and poop at 7:30 am, pee at 4:00pm, eat at 5:00pm, and pee and poop at 6:00pm. However, when they were 5 months old they were going out every hour until they understood that peeing in the crate or the house was not allowed. Also, my female needed the crate shortened often. She finally got the hang of it. If this is new behavior, I would take your pup to the vet. Don't give up, you will be surprised at how all of sudden your pup gets it.

Reils