zztool What is Menstrual Cycle?
The menstrual cycle is the time from the first day of one period to the first day of the next. A normal cycle typically ranges from 21-35 days, averaging 28 days. Understanding your cycle helps predict period dates, identify ovulation, and better manage reproductive health.
Features
Predict future period dates based on your data
Calculate most likely ovulation day and fertile window
Intuitive display of cycle phases
View predictions for multiple months ahead
Tips
- ✓Ovulation typically occurs about 14 days before next period
- ✓Fertile window is 5 days before to 1 day after ovulation
- ✓Cycle length may vary due to stress, diet, exercise
- ✓Track multiple cycles for more accurate predictions
FAQ
How to calculate menstrual cycle?
Count from the first day of your period to the day before your next period starts. This is one complete menstrual cycle.
How to calculate ovulation day?
Ovulation typically occurs 14 days before your next period. For a 28-day cycle, ovulation is around day 14.
What is the safe period?
Safe period refers to days when conception is less likely, typically outside of menstruation and fertile window. However, safe period is not a reliable contraception method.
What if my cycle is irregular?
If your cycle is frequently irregular (less than 21 days or more than 35 days), consult a gynecologist for further evaluation.
Accurate predictions!
Easy to use interface.
Very helpful tracking tool.