Pregnancy Tools
Ovulation Calculator
Estimate your most fertile days and increase your chances of conceiving. Based on your cycle length.
Estimated Ovulation Date
Most Fertile:
Next Period
Expected around
If you conceive
Estimated Due Date:
How it works
Ovulation usually happens about 14 days before your next period starts. Your most fertile window is the 5 days leading up to ovulation, plus the day of ovulation itself. Sperm can survive for up to 5 days, so having sex in this window gives you the best chance.
Please note: Every body is different. Stress, illness, and lifestyle can affect your cycle. We recommend using ovulation test strips for precise tracking.
Important
This tool gives an estimate based on average cycle patterns. It does not replace medical advice and should not be used as a method of contraception (birth control), especially if your cycles are irregular.