I have not ever breed a bulldog but my first question is have you picked a female? Have you had both your male and the female health certified. I am not trying to preach here. I believe responsible breeders should continue to breed, BUT I also know there is no pain in the ENTIRE WORLD worse than losing your puppy to some unknown congenital cause. Please take the time and money to do this if you are serious Your vet will be able to help you .Don't just assume that because your male is healthy ,and the bitch is healthy ,that they will not pass issues on to their puppies. I wish someone had done this before having my boy. I still cry every day over losing him. Don't do that to anyone else. You never know what can happen but you can take precautions.