Hi, I own a pit bull she wasn't hard to housebreak. I had her housebroken in a week. I got a paper from the Humane Society on how to housebreak a dog. It worked like a charm. This is what they said to do:

Take the dog out every couple of hours when he does go outside praise the heck out of him and give him some sort of treat. Try to take him to the same spot he goes each time. Take him out when you get up every morning and before you go to bed. Sometimes you have to walk around with them before they will go.

When you catch him going in the house tell him "stop" in a frim voice, take him outside. Put up his water about 2 hours before bed. Be sure to always praise him and give him that treat when he does go outside. He will be housebroke before you know it. Good luck. Congrats on the pittie arent they a lot of fun?!?