<p>Adolescent pregnancy is a notable public health issue in sub-Saharan Africa. While nationally representative cross-sectional data such as the Demographic and Health Surveys (DHS) have offered valuable data to examine the burden of adolescent pregnancy, they do not fully capture the nature of this phenomenon. Longitudinal studies, by contrast, can provide insights into the factors influencing adolescent pregnancy, its impact, and the effectiveness of over time. This commentary discusses the limitations of the DHS data, the potential for longitudinal studies, and the methodological considerations for conducting such research in sub-Saharan Africa. It emphasizes the importance of collaboration and partnerships for maximizing the impact of longitudinal studies on policy and programming to address adolescent pregnancy in sub-Saharan Africa.</p>