30 Day Cycle Overview
Ovulation: Day 16
High Fertility: Day 11 – 17 | Next Period: Day 31
Is It Late, or Just Delayed?
If your cycle is normally strictly 30 days, a variation of 1-3 days is still medically considered normal due to stress, travel, or minor illnesses affecting the exact release of your egg (delayed ovulation). It is officially considered "late" once you pass Day 35 without a period.
Your Specific Cycle Metrics
| Cycle Day | Biological Event |
|---|---|
| Day 1 | First day of period (Full Flow) |
| Day 11 - 17 | High Fertility Window |
| Day 16 | Estimated Ovulation |
| Day 31 | Next expected period / Testing Day |