I had the same results, carcinoma insitu beyond the margins after a conization. My OB/GYN gave me two options, have the CKC again or be conservative and follow up with colposcopies and ECCs every 3 months. I then went and saw a gyn oncologists for a second opinion. He said if I was his daughter he would tell me to follow up with colposcopies and just monitor it because I am only 27, would like to have children, and I'm in other wise good health and shape so my body could fight it off on its own.
I know my circumstances are a little different because my steps are directed towards having children but just wanted to let you know I'm going through the same thing! I have my follow up colposcopy in October and will give an update after that.
Good luck!