Breast cancer questions

This year I will be 18, which means I will be tested for the breast cancer gene. My mother and grandmother both had it and possibly my great grandmother. It is an extremely tough situation, and as someone who wants to have kids when I’m older, I’m worried the gene may not stop with me. I don’t know how high my chances of getting it are, i just know I’m at an increased risk.

I’m terrified. I don’t want to have the gene. I refuse to have children if I do because I don’t want them to suffer that and I don’t want their children to possibly suffer that too. I don’t know much about it, but all I know is how worried and stressed I am that it will carry to me. Could anyone possibly educate me more on this or ease my mind because this has my brain scattered all over the place.

(I wasn’t sure where to post this so I posted it under this group)