powerfully effective in treating dozens of diseases including leukemia, sickle cell, and certain ginetteod is usually thrown away. >> you could really save a life of someone with a fatal disease who had no other options. >> reporter: now new guidelines urge doctors to talk to every pregnant woman about donating. also, patients are encouraged to use public cord blood banks that are free instead of private storage that can cost more than $2,000. >>> will this change the way you counsel your patients? >> he this will definitely change how i counsel patients about cord blood collection. >> reporter: doctors hope it increases lifesaving donations. >> there is no pain whatsoever. the cord blood is collected after the baby is delivered. the cord is cut and clamped. >> it doesn't cost any money. it helps other families like us. >> reporter: making parents more aware that at the beginning of life there is a chance to save another life. rehema ellis, nbc news, new york. >> bill karins is back with us to tell us how our weekend is going to shape up. bill? >> for some people it is going to be lookin