I had a really strong family history. On my fathers side 3 of his sisters had breast and/or ovarisn cancer and so had many of their daughters and most likely his mother. On my mothers side my sister (different Dad) had breast cancer and her daughter had breast cancer. I was tested against my father's side known brac1 gene (twice to be sure) and found not to have it. Nor any siblings...so looks like my Father didn't carry it. My sister and her daughter were checked for known genes and none found. Both my sister and I developed cancer around menopause. My niece was much younger.
I did have bilateral mastectomies due to recommendation of surgeon, breast density and family history. However since no gene did not go on to have ovaries and tubes removed. It helps to have all the info. To make the decision at a time not in fear. It is a significant change to your body. They can reconstruct the look of your breast but never the feel and the surgery can be extenisive depending on what you choose. I recommend a referral to a genetic counsellour regardless of outcome as it really helped me plan my future and detection alternatives etc.