I have owned a Bulldog for 7 years now... and I can tell you to just do alot of research research research!!! Bulldogs have to be babied to be successful and happy. You can't just turn a stud dog loose on your female - most bulldogs are artifically inseminated..at a veterinarian.. also when the babies are born. their shoulders are too wide. All Bulldogs have to have C-Section births done by the vet. While the mother is recovering from surgery you will have to hand feed and take care of the pups yourself for a few days - meaning cleaning up, feeding them, everything. It is alot to undertake. Just do alot of research and talk with some local vets in your area and your bulldog associations.
These are not dogs that you can just breed, wait for them to pop out babies then sell them... hehee!! I LOVE bulldogs though and I will always own them! Good luck!

I am just finishing up with a liter of English Bulldogs. My female went against all that is said about Bulldogs. She whelped on her own. Did not need a C-section. She was a natural cover. We had 7 healthy puppies. Two of which I still have if anyone is interested. She did great. I did keep the puppies separated from her. I got up every two hours and put the puppies with the mom. She did great. Breeding English Bulldogs is not for the faint of heart though. It was alot of work. I do agree with waiting until they are 18 mos. to 2 years to breed them though. I did alot of research and talked to my vet alot. I am an Animal Health Technician so I am some what knowledgeable. But my wife freaked out just about the whole time during the pregnancy and the whelping process. The owner if the male I used was a weath of knowledge also. It helps to have a network of support.