I had no family history on my Mums side until myself, sister and her daughter. As yet they haven't foubd a gene but keep retesting as more genes identified. You can ve the 1st generation with the mutation. It can ve helpful to at least have the genetic counselling and see what they think. Thete is no hurry. As my breast surgeon said to me...positive or not it doesn't change tbe treatment needed today for your breast cancer. What it does change is what you might do later to avoid another primary or ovarian cancer if you carry a mutated gene. I had it done after my chemo.