Contraception has had a significant impact on teenage pregnancy rates. Access to and education about contraception methods have contributed to a decline in teenage pregnancy rates in many countries. For example, a study conducted by the Guttmacher Institute found that increased use of contraceptives among sexually active teenagers was a key factor in the decline of teenage pregnancy rates in the United States.

Furthermore, comprehensive sex education programs that include information about contraception have been shown to reduce the likelihood of teenage pregnancy. Countries like the Netherlands, where comprehensive sex education and access to contraception are prioritized, have some of the lowest teenage pregnancy rates in the world.

References:

• Guttmacher Institute. (2019). Contraceptive Use in the United States. Retrieved from https://www.guttmacher.org/fact-sheet/contraceptive-use-united-states
• Ketting, E., & Visser, A. P. (1994). Contraception and Teenage Pregnancy in the Netherlands. Patient Education and Counseling, 23(1), 37-48. doi:10.1016/0738-3991(94)90060-4