The mission of the XXYY Project is to build the capacity of parents and service providers to assist males with XXYY in leading purposeful, productive lives. If you want to learn more about 48 XXYY Syndrome, please contact The XXYY Project: The XXYY Project PO Box 460625 Aurora, CO 80046-0625 Phone: (303) 400-3456 Fax: (303) 400-3454 http://xxyysyndrome.org

My Current boyfriend has xxyy, is infirtillity 100% or is there a small chance that he can reproduce

Men with XXYY are considered infertile. There are no documented cases of a male with XXYY producing a child using natural methods. If you are looking to get pregnant, Dr Paduch (http://www.weillcornell.org/dpaduch/) has been doing some pioneering work with sperm extraction. I would recommend that you contact him to see if there is a possibility that his procedures might be successful for your case.