The Truth About Due Dates

The Estimated Due Date (EDD) is based on Naegele’s Rule — a 200-year-old formula that assumes a 28-day cycle and ovulation on day 14. In this episode, we unpack why that’s overly simplistic, how ultrasound “dating” plays into it, and how a single date creates unnecessary urgency around induction. We also cover: What’s actually considered a normal gestation rangeHow the label “overdue” shifts decision-makingAbsolute vs. relative risk at 39–41+ weeksPractical questions to ask your providerMinds...