First, you need to find out what the biopsy shows.  You may still be in a precancerous situation.  If you are having any kind of systemic treatment for your breast cancer like chemo, ask if it will also help with the cervical situation.  Ask how any cervical cancer treatments like surgery will affect the breast cancer treatments.  If there are conflicts such as surgery for the cervical possibly delaying chemo for the breast cancer, ask which is the higher priority.  You are not alone in having to deal with two cancers at once; it happens more often than you might think.  Maybe some of readers who have had the same thing happen to them can give you some insight into their experience.