I have a daughter 12 and son 11th I have just found out i Stage 4 ovarian cancer and may have 3-5 years left. I am the working mother, and her father is the stay at home dad (our consent, since the adoption when they were babies). How can I tell them I have cancer, is surgery and chemotherapy, and how do I prevent them from ovarian cancer examined c on the Internet? How much do I have to tell them?