I was 35 when diagnosed, and that is considered quite young
for ovarian cancer. If I test postive
for either BRCA 1 or 2, the only thing that will change is my mammogram schedule. They will do an MRI once a year, and a mammogram once a year, rotating them every 6 months. In other words, an MRI in January, a mammogram in July, an MRI the next January, a mammogram the next July, etc.
Your best bet would be to see a genetics counselor and have them do a "family tree".