This report presents an update on the current situation of pregnancies among girls less than 18 years of age and adolescents 15-19 years of age. The report also covers trends during the last 10 years and variations across geographic, cultural and economic settings, as well as interventions available to minimize pregnancy among adolescents. The report lists evidence for these programmatic approaches, and challenges that nations will have to deal with in the next 20 years given current population momentum.