Overview
Reverse engineer the timeline.
Conception Date Finder
Estimate the date of conception based on due date or LMP.
Conception Date Finder
Work backwards to find ovulation windows.
Estimated Due Date
September 14, 2026
Estimated Conception: Dec 22, 2025
First Trimester Ends
Mar 9, 2026
Second Trimester Ends
Jun 15, 2026
Full Term (40W)
Sep 14, 2026
Medical Disclaimer: This tool uses the standard 280-day Naegele's rule pregnancy calculation. This is an estimate; only about 5% of babies are born exactly on their due dates. Consult your healthcare provider for clinical assessments.