The objective of this paper is to explore the strengths, weaknesses, gaps, and needs in research on medication use in pregnancy, where opportunities have been bypassed to develop standards and collaborations for collecting data to better understand how medications can impact clinical outcomes in pregnant women and developing fetuses. The availability of existing data and the methods of its capture are reviewed, including registries, claims and health record databases, and meta-analyses. The paper focuses on why these efforts have not fundamentally provided benefit-risk information and clinical treatment algorithms for medication use in pregnant women. Methodological issues, such as lack of standardization and central data collection, are discussed. Common barriers are examined, including a lack of awareness and education, cultural hurdles, collaboration deficiency, and an insufficient development of new data collection methods.