Period Calculator
Stay ahead of your cycle with precise predictions.
Enter your last period date to see predictions.
Understanding Your Cycle
A menstrual cycle is measured from the first day of one period to the first day of the next. The average cycle is 28 days, but it's normal for it to range from 21 to 35 days.
Why Track Your Period?
Tracking your cycle helps you understand your body's patterns, identify irregularities, and plan for events. It's also an essential tool for those trying to conceive or avoid pregnancy.
Cycle Variations
Many factors can influence your cycle length, including stress, diet, exercise, and hormonal changes. If you notice significant changes in your cycle, it's always best to consult with a healthcare professional.
Did you know?
The follicular phase (before ovulation) can vary in length, but the luteal phase (after ovulation) is almost always 14 days long.
How to Use
- Select the first day of your last period using the date picker.
- Adjust the slider to your average cycle length.
- Click "Predict Next Cycle" to calculate when your next period should start and when your fertile window is likely to occur.
Frequently Asked Questions
What is a normal cycle length?
A normal menstrual cycle can range anywhere from 21 to 35 days, with 28 days being the average. It's completely normal for cycles to vary slightly from month to month.
Why should I track my period?
Tracking helps you predict future periods, understand your fertility window, identify physical/emotional patterns, and monitor your overall reproductive health.