Period Calculator
Track your menstrual cycle and predict future periods, ovulation dates, and fertile windows for better reproductive health awareness.
Cycle Information
Select the first day of your last menstrual period
Typical range: 21-35 days (average: 28 days)
How many days your period typically lasts (3-7 days)
Understanding Your Menstrual Cycle
Cycle Phases
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Menstrual Phase
Days 1-5: Period bleeding occurs
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Follicular Phase
Days 1-13: Egg development begins
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Ovulation
Around day 14: Egg is released
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Luteal Phase
Days 15-28: Prepare for next cycle
Benefits of Tracking
- •Predict periods and plan ahead for important events
- •Identify your most fertile days for family planning
- •Monitor cycle regularity and detect potential issues
- •Better understand your body's natural rhythms
Cycle Predictions
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Enter your last period date to track your cycle
Cycle Tips
Track for Accuracy
Track symptoms for 2-3 cycles for more accurate predictions
Monitor Symptoms
Note PMS symptoms, mood changes, and physical signs
Consult Healthcare Provider
Discuss irregular cycles or concerning symptoms with your doctor