When I got Macy she was 8 weeks old and she could hold it from 10 until 5 am, in her crate. When she was about 12 weeks old she moved into our bed because she was up every 2 hours wanting out of the crate, without peeing. I gave in and that was the best thing I could have done for me because now we both get to sleep until the alarm goes off at 6. I was beat the entire day getting up with her so many times.
Since then she has only peed on the floor once and that was this morning because I went to the bathroom first because I thought she was still sleeping and low and behold she came out and peed on the kitchen floor. (thank god not on my bed or in my bedroom!)
Good luck and have fun take lots of pictures they grow up so fast!