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Period Calculator
Track your cycle and predict ovulation dates
📋 Your Information
20
28
35
45
📅 Upcoming Dates
Next 3 Period Dates:
Next Period:
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2nd Cycle:
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3rd Cycle:
—
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Most Fertile Window
Ovulation (approx.):
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Fertile window:
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📆 Calendar View
Period
Fertile
Ovulation
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Period Length
3-7 days
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Ovulation
Day 14 ±2
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Fertile Window
5-6 days
How to Calculate Your Cycle Length?
📊 Understanding Cycle Length
Cycle length is the number of days from the first day of your period to the day before your next period starts.
Cycle = Day 1 of period → Day 1 of next period
A typical cycle is 28 days, but normal cycles can range from 21-35 days.
🔢 How to Track
- 1. Mark the first day of your period (Day 1)
- 2. Count all days until your next period starts
- 3. Track for 3-4 months to get an average
- 4. Use this average for predictions
Signs of Ovulation
🌡️
Basal Body Temperature
Slight temperature rise (0.5-1°F) after ovulation
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Cervical Mucus
Clear, stretchy discharge similar to egg whites
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Cervical Position
Softer, higher, and more open during fertile window
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Mittelschmerz
Mild ovulation pain or cramping on one side
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Heightened Senses
Increased sense of smell or taste sensitivity
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Positive OPK
Ovulation predictor kit shows LH surge
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Your Privacy Matters
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