Editing Teenage pregnancy (section)

===Role of drug and alcohol use===
Inhibition-reducing [[Drug abuse|drugs]] and [[alcohol (drug)|alcohol]] may possibly encourage unintended sexual activity.<ref>Theuri, Joseph and Nzioka, David (2021). Alcohol and drug abuse as ecological predictors of risk taking behaviour among secondary school students in Kajiado North Sub-County, Kajiado County, Kenya. African Journal of Empirical Research, 2 (1), 50–55. {{doi|10.51867/ajer.v2i1.9}}</ref> If so, it is unknown if the drugs themselves directly influence teenagers to engage in riskier behavior, or whether teenagers who engage in drug use are more likely to engage in sex. [[Correlation does not imply causation]]. The drugs with the strongest evidence linking them to teenage pregnancy are [[alcohol (drug)|alcohol]], [[cannabis (drug)|cannabis]], [[MDMA|"ecstasy"]] and other [[substituted amphetamine]]s. The drugs with the least evidence to support a link to early pregnancy are [[opioids]], such as [[heroin]], [[morphine]], and [[oxycodone]], of which a well-known effect is the significant reduction of [[libido]] – it appears that teenage [[opioid dependence|opioid]] [[recreational drug use|users]] have significantly reduced rates of conception compared to their peers who do not use opioids, and peers who do use  [[alcohol (drug)|alcohol]], [[MDMA|"ecstasy"]], cannabis, and [[amphetamine]].<ref name=oecd/><ref name="kaiser"/><ref name=Besharov/><ref>Sax, Leonard (2005) [http://www.whygendermatters.com/ ''Why Gender Matters'']. Doubleday books, p.&nbsp;128, {{ISBN|0786176814}}</ref>