Young girls who have access to the real information and guidance on how it works are less likely to get pregnant at a young age. And more so still if there is contraception available easily they are more likely to use it. This can shown by an american study called the contraceptive CHOICE project. They gathered a cohort of girls aged 15-19 and followed them for 2-3 years and gave them access to free contraception. There was over 1,400 girls involved and there was a drastic drop in teenage pregnacy as a result. Secura, G. M., Madden, T., McNicholas, C., Mullersman, J., Buckel, C. M., Zhao, Q., & Peipert, J. F. (2014). Provision of no-cost, long-acting contraception and teenage pregnancy. New England Journal of Medicine, 371(14), 1316-1323.