Ovulation Day for a 40-day Cycle When the Last Period Started on October 13, 2025
⚪ Ovulation day (highest chance for pregnant) is:
2025-11-08 (Saturday)
📅 Fertile window: Nov 04 - Nov 09
| Tue | Wed | Thu | Fri | Sat | Sun |
| Nov 04 | Nov 05 | Nov 06 | Nov 07 | Nov 08 | Nov 09 |
| 👦 | 👦 | 👦/👧 | 👧 | 👧 | 👧 |
Pregnacy test day: Nov 23 2025
💡 According to recent studies, the chance of conception during ovulation is about 25%. Therefore, do not worry when the test comes out negative. Another chance is just a month of waiting.
If pregnant:
🤱 Due date: Jul 20 2026 (Monday)
If not pregnant.
🩸 Next period: Nov 22 2025
⚪ Next ovulation: Dec 18 2025
Nearest days of ovulation for a 40-day cycle
- Ovulation day for a 40-day cycle when the last period started on October 9
- Ovulation day for a 40-day cycle when the last period started on October 10
- Ovulation day for a 40-day cycle when the last period started on October 11
- Ovulation day for a 40-day cycle when the last period started on October 12
- Ovulation day for a 40-day cycle when the last period started on October 13
- Ovulation day for a 40-day cycle when the last period started on October 14
- Ovulation day for a 40-day cycle when the last period started on October 15
- Ovulation day for a 40-day cycle when the last period started on October 16
- Ovulation day for a 40-day cycle when the last period started on October 17
The closest calculation of the day of ovulation for different cycle lengths when the first day of the period was October 13, 2025
- Ovulation day for a 36-day cycle when the last period started on October 13
- Ovulation day for a 37-day cycle when the last period started on October 13
- Ovulation day for a 38-day cycle when the last period started on October 13
- Ovulation day for a 39-day cycle when the last period started on October 13
- Ovulation day for a 40-day cycle when the last period started on October 13
- Ovulation day for a 41-day cycle when the last period started on October 13
- Ovulation day for a 42-day cycle when the last period started on October 13
- Ovulation day for a 43-day cycle when the last period started on October 13
- Ovulation day for a 44-day cycle when the last period started on October 13