When does ovulation usually occur?

Ovulation typically occurs about 14 days before your next period starts. In a 28-day cycle, this is right in the middle.

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Ovulation Calculator

Estimate your most fertile days and ovulation date.

Timing is everything when you are trying to conceive. Every month, there is only a small window of time—the fertile window—when pregnancy is possible. This window includes the day of ovulation and the few days leading up to it. Our Ovulation Calculator helps you identify these high-probability days by analyzing your cycle history, providing you with a personalized fertility calendar to help you on your journey toward parenthood.

First Day of Last Period

Average Cycle Length (days)

Enter the date of your last period and average cycle length.

Nasıl Çalışır

The tool uses your average cycle length to project your next expected period. It then counts back 14 days to find the estimated ovulation date and highlights the 5 days preceding it as your prime fertile window.

Hesaplama Formülü

Next Period - 14 Days

Calculation Examples

1. **Standard Cycle**: With a 28-day cycle starting on the 1st, ovulation is estimated for the **15th**, with the fertile window starting on the **10th**.

Why use this tool in your daily life?

For couples trying to conceive, this tool is an essential planning partner. It removes the stress of uncertainty, allowing you to maximize your chances of pregnancy by focusing on the days when you are naturally most fertile.