Bioidentical hormones and breast cancer

Hi everyone, I had early stage one breast cancer 25 years ago and have been fine ever since. My tumor was fed by hormones. I am dealing with osteoporosis now and I've heard that bioidentical hormones can help bone density, but I know I have to be careful. Is there any data available on the risk of low dose bioidentical hormones in breast cancer survivors like myself? Any data that you can provide would be extremely helpful. Thank you so much!