The phenomen of peer pregnancy in the world, as well as in the Republic of Croatia, is stagnating or is in mild decline. Regardless of this trend, we should not neglect the existence of peer pregnancies that have many challenges for adolescents who put themselves in a position to become parents. The adolescence is period full of turmoil and adolescents seek their own identity and pave their way towards adulthood. To be more effective in going thorough of adolescence, they need help from their families and systems and society as a whole. Engaging in sexual relations includes a possibility of pregnancy. Like everyone, adolescents should assume personal responsibility for their behaviour and in this case it means assuming responsibility for sexual behaviour that may result in unwanted underage pregnancy. Dealing with this new situation is not easy and that is where the role of family, school and society is important for them. Preventive and informative programs for adolescents are also important, in order for them to get as much systematic sexual education as possible, and avoid sexual risk behaviours, and so that the number of peer pregnancy could be reduced even more.