I am not on this, have no special knowledge about it, but a random thought/ponder.
I had a male friend who was suffering from going bald naturally. He tried Minoxidil (Rogainetm) and you could see the difference big time. My understanding of how it works is not by growing new hair, but by stopping hair from falling out. Talk to your doc and maybe give it a try. Make sure to talk to your doc even though its available without a prescription, as my friend said he was growing hair everywhere, so it obviously got into his blood (he was only rubbing it on his scalp).