Aren't you the same person asking why your pit shakes sometimes? And stating he also loses hair easily? Besides the obvious problematic issues of breeding pit bulls why would you want to breed a dog that you know has health issues?
How much health testing have you had done on him, what about cancer in his lines? How many shows has he won? What makes him so special that you are willing to risk not only another dogs life by giving birth, but all those pups going to the shelter just so you can have another one of him?
Did you realized that dogs do not usually throw an exact copy of themselves. If you want that, you need to go back to where you got him from and try to get another pup from the exact same parents he came from. Genetics are always different.