In the context of a high and increasing incidence of unwanted pregnancy among Nigerian adolescents, a sample survey of never-married residents of the Ibadan area, aged 14 to 25 years, was conducted in 1982 to learn about their perceptions and practices relating to reproductive health. A substantial proportion of the young unmarried population is sexually active, and despite comparatively high contraceptive prevalence among that proportion, many are still engaging in sexual relations without benefit of contraceptive protection. Nearly half of the female students interviewed at both the secondary and university levels have been pregnant, as have two-thirds of those not currently enrolled in school. Among those respondents who had been pregnant, almost all reported that they voluntarily terminated their pregnancies. Existing and needed contraceptive services for the adolescent population are discussed.