Earlier this year, IPUMS DHS began releasing reproductive calendar data, making it easy to use these incredibly valuable (but complex) data. The reproductive calendar is a month-by-month history of reproductive events occurring to a female survey respondent, typically covering the five years preceding her interview. The calendar is uniquely valuable because it introduces a longitudinal dimension to what are otherwise cross-sectional data. With the calendar data, researchers can pinpoint the frequency of premature births and pregnancy terminations, choices regarding pregnancy timing, the effectiveness and perceived disadvantages of different types of contraception, levels and consequences of infertility, and the impact of social and environmental contexts on the timing of births. In this webinar, we explain how to use the IPUMS DHS version of the calendar data.