@sophie93, People have mentioned Dr. Keith McCormick several times here, and his super book, "Great Bones", which was published this year. If you have time, please also consider watching the videos where he discusses osteoporosis medications ( (links below). I learned so much from them and they better prepared me when I met with my PCP and endocrinologist.
1. Margie Bissinger interview: https://margiebissinger.com/186-osteoporosis-medications-pros-and-cons-dr-r-keith-mccormick/
2. OsteoBoston interview: https://www.youtube.com/watch?v=aon8nx_q0DA (As an FYI, estrogen discussed at 17:45-19:00 and 35:40-36:37, Women's Health Initiative study mentioned briefly starting at 16:28.)
Best wishes! And good for you to have found this forum!