Teenage pregnancy remains a critical global health issue, particularly in low- and middle-income countries. The intergenerational transmission of teenage pregnancy underscores the need for targeted interventions. Existing research on intergenerational approaches is fragmented, with varying methodologies and outcomes. This scoping review seeks to address this gap by answering the following research questions: What are the available intergenerational interventions for teenage pregnancy, and what are the associated risks and protective factors for early and late teenage pregnancy?

This study does not involve primary data collection and therefore does not require ethical approval. The review will be conducted in five stages: identifying the research question; identifying relevant studies; study selection; charting the data; and collating, summarising and reporting the results. A comprehensive search of electronic databases, grey literature and relevant organisational websites will be conducted for literature published between 2014 and 2024. Data will be extracted using a standardised form and synthesised narratively. Stakeholder consultation will be conducted to refine findings and ensure relevance. The findings will be reported in accordance with the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) extension for Scoping Reviews guidelines. The results will be presented through narrative synthesis, with tables and charts used to summarise key information.

As the review is based on publicly available data, ethical approval is not required. Ethical clearance will be sought for stakeholder consultations, if necessary. Findings will be disseminated through peer-reviewed publications, conferences, policy briefs and shared openly on the Open Science Framework (OSF). This protocol is registered in the OSF (https://doi.org/10.17605/OSF.IO/CM9WK).