Welcome to the Breast Cancer Care discussion forums, you've come to the right place for some good, honest support from the many informed users of this site, who I am sure will be along soon to give you that much needed support.
In the meantime I have put for you below the link to one of BCC's publications you might like to read regarding breast cancer in families. Could I also suggest that you give our helpline team here a ring and have a chat with one of the staff, they will be able to explain things to you and point you in the direction of more support if it's appropriate. Lines are open now, calls are free 0808 800 6000, open Mon-Fri 9-5 and Sat 10-2.
I hope this helps.