It's a tough one. What about your DH? What are his feelings on the subject? If you think that he will be a good enough advocate, it might not be a drama and your Doula will back him up. Having any potential hassle during birth isn't going to be conducive for a smooth birth, so if you decide to go to hospital, go over everything with them, in black and white, and make sure that they are clear on it. They can't do anything against your wishes.