⌕⌘ K
◷
HEALTH
Pregnancy Conception Calculator
Estimate Pregnancy Conception with transparent assumptions.
Choose what you knowEstimate conception from a due date, period, ultrasound, or IVF transfer.
4 optionsESTIMATED CONCEPTION DATEJanuary 15, 2026
Based on the due date. Educational estimate only; not medical advice.
- Estimated conception date
- January 15, 2026
- Estimated due date
- October 8, 2026
- Estimated gestational start
- January 1, 2026
Formula checkedEstimated conception is 266 days before due date or 14 days after the cycle-adjusted gestational start.