Teen pregnancy remains one of the key social issues that deeply affects not only the life of a young mother and her child but their inner circle and society as well. In spite of multiple efforts to reduce its prevalence rate, teen pregnancy is still a pressing issue in many countries. Currently, there are several key problems that can result in an increased risk of teen pregnancy. They include an early beginning of sexual activity, history of sexual abuse, low social and economic status, lack of parental care and support, cultural and family behavioral models, use of psychoactive substances, poor academic performance and expulsion from school. In addition, the probability of a repeated teenage pregnancy is significantly increased, passing the problem on from one generation to another. This article is aimed at a comprehensive analysis of these factors and statistical data in order to better understand the problem of teenage pregnancy, assess its consequences for the health and well-being of those underaged and their children. Special attention is paid to the ethical and social aspects of teenage pregnancy.