What Month Is 9 Months Before February? the Exact Date Math Explained
Mapping a February delivery requires isolating the menstrual cycle start, fertilization, and embryonic development. The table below outlines how reverse due date math translates across the calendar.
| February Due Date | Estimated Ovulation / Conception | Probable LMP Start Date | End of First Trimester |
|---|---|---|---|
| February 1 | May 11 | April 27 | July 27 |
| February 8 | May 18 | May 4 | August 3 |
| February 14 | May 24 | May 10 | August 9 |
| February 21 | May 31 | May 17 | August 16 |
| February 28 | June 7 | May 24 | August 23 |
Anyone expecting a delivery in early February conceived in early to mid-May. Deliveries scheduled for the final week of February typically point to late-May menstrual cycles and early June conception dates.
