Conception Calculator

Result

Important dates for this cycle:

Most Probable Conception DaysSep 30, 2025 - Oct 9, 2025
Ovulation WindowSep 30, 2025 - Oct 8, 2025
Best Intercourse Days for PregnancySep 25, 2025 - Oct 8, 2025
Pregnancy TestOct 13, 2025
Next Period StartOct 18, 2025
Due Date If PregnantJun 27, 2026

Conception Calendar

September 2025
SMTWTFS
123456
78910111213
14151617181920
21222324252627
282930

Next 6 Cycles

Period StartConception WindowDue Date
Sep 20, 2025Sep 30, 2025 - Oct 9, 2025Jun 27, 2026
Oct 18, 2025Oct 28, 2025 - Nov 6, 2025Jul 25, 2026
Nov 15, 2025Nov 25, 2025 - Dec 4, 2025Aug 22, 2026
Dec 13, 2025Dec 23, 2025 - Jan 1, 2026Sep 19, 2026
Jan 10, 2026Jan 20, 2026 - Jan 29, 2026Oct 17, 2026
Feb 7, 2026Feb 17, 2026 - Feb 26, 2026Nov 14, 2026

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Conception Tips

  • Have regular intercourse every 2-3 days, especially in the fertile window.
  • Track basal body temperature to confirm ovulation.
  • Monitor cervical mucus for fertile-quality (egg-white) texture.
  • Consult a doctor for irregular cycles or conception challenges.

Key Conception Facts

  • Fertile Window: Days 10-18 of cycle, peaking at ovulation.
  • Sperm Viability: Survives up to 5-7 days in the body.
  • Egg Lifespan: Viable for 12-24 hours post-ovulation.