30 Day Cycle Overview
Ovulation: Day 16
High Fertility: Day 11 – 17 | Next Period: Day 31
Your Fertile Window Explained
Because the luteal phase (post-ovulation) is almost always 14 days, a 30-day cycle means you ovulate around Day 16. Sperm can survive up to 5 days internally, meaning your highest chances of conception fall exactly between Day 11 and Day 17.
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 |