29 Day Cycle Overview
Ovulation: Day 15
High Fertility: Day 10 – 16 | Next Period: Day 30
Tracking a 29-Day Cycle
For a consistent 29-day cycle, your next period will begin exactly 29 days after the first day of full bleeding from your previous cycle. While apps use averages, your biology dictates that the follicular phase (the days leading up to ovulation) is what causes this specific length.
Your Specific Cycle Metrics
| Cycle Day | Biological Event |
|---|---|
| Day 1 | First day of period (Full Flow) |
| Day 10 - 16 | High Fertility Window |
| Day 15 | Estimated Ovulation |
| Day 30 | Next expected period / Testing Day |