World Health Organization World Health Organization: Emergency Contraceptions Emergency contraception prevents ovulation World Health Organization WHO says about EC does not cause abortions will not cause abortion every major health organization every major health organization World Health Organization http://www.who.int/mediacentre/factsheets/fs244/en/ World Health Organization Emergency contraception prevents ovulation World Health Organization no provoca un aborto World Health Organization WHO Factsheet World Health Organization World Health Organization World Health Organization World Health Organization Emergency contraception prevents ovulation Fact sheet on Emergency Contraception http://www.who.int/mediacentre/factsheets/fs244/en/ website website Emergency contraception World Health Organization: Emergency Contraceptions World Health Organization World Health Organization World Health Organization: Emergency Contraceptions WHO Factsheet World Health Organization World Health Organization Emergency Contraception Factsheet Emergency Contraception Factsheet