Freezing Ovarian Tissue
This is the method where prior to beginning chemotherapy, a biopsy is taken from the cortex of the ovary and frozen in –196C. This method has received a lot of media attention however; there have not been any proven pregnancies as a result of this procedure although a few reports claiming pregnancies after the autotransplantation of the thawed ovarian tissue. All these pregnanies happened in women who had their own ovaries. Therefore the possibility of ovulating from the existing ovaries creating pregnancies cannot be excluded.