I have a male American bulldog that has never been bred before and a female that hasen't been bred before. When I breed them everything goes normal, except that he swells up for the tie and falls out ethier right after or as soon as a little pull is given (before i can get them turned around) he seems to be normal in penis size. Any one know why this is happening?? CAn the bitch still get pregnant this way?? MISS BEE