I know 3 different people in different parts of the uk who just recently between them had 3 tests each on their girls, two got one puppy, and the other non, id seek out an experienced dog and he will tell you when shes ready, then go for it.
Cheers Bowers, that is my intention, but it is good to gather information to make an informed decision. Unfortunately the bulldog is very difficult to breed and it will be my first time with them.