I'm hoping this gets seen here!

So after a ton of research, I am deciding to utilize an estradiol patch and progesterone as one of the ways of treating my osteoporosis. My PCP is supportive but stated that she would use Provera instead of progesterone as that is what she was trained to do. Anyone have any really good articles/studies of even info on the differences. I have googled of course and not finding a great source. FWIW, I am consulting with an out of state specialist but he cannot prescribe for me. I did have a local gyn. also suggest the progesterone (with the estradial), and I can go back to her if needed, but for many reasons it would be easier if my PCP was on board. So, basically, I am not making this up and my PCP is easy to work with and would listen if I had some good information to give her...anyone?