This chapter focuses on a qualitative longitudinal (QL) research project, Transition to Fatherhood, and later episodes of fathering and fatherhood experiences. It begins by exploring the research design of this study and considers the inherent gendered and other assumptions made in it, which mirrors an earlier research project on Transition to Motherhood. Following an examination of some of the methodological issues that arose during this qualitative longitudinal study, the chapter turns to reflect on the important question of what adding time into a qualitative study can do. It considers what happens when narratives collected in later interviews are incorporated into earlier analysis and findings as lives and fatherhood experiences change, as well as the benefits of researching individuals over time.