Ovulation Day for a 40-day Cycle When the Last Period Started on October 25, 2025
⚪ Ovulation day (highest chance for pregnant) is:
2025-11-20 (Thursday)
📅 Fertile window: Nov 16 - Nov 21
| Sun | Mon | Tue | Wed | Thu | Fri |
| Nov 16 | Nov 17 | Nov 18 | Nov 19 | Nov 20 | Nov 21 |
| 👦 | 👦 | 👦/👧 | 👧 | 👧 | 👧 |
Pregnacy test day: Dec 05 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: Aug 01 2026 (Saturday)
If not pregnant.
🩸 Next period: Dec 04 2025
⚪ Next ovulation: Dec 30 2025
Nearest days of ovulation for a 40-day cycle
- Ovulation day for a 40-day cycle when the last period started on October 21
- Ovulation day for a 40-day cycle when the last period started on October 22
- Ovulation day for a 40-day cycle when the last period started on October 23
- Ovulation day for a 40-day cycle when the last period started on October 24
- Ovulation day for a 40-day cycle when the last period started on October 25
- Ovulation day for a 40-day cycle when the last period started on October 26
- Ovulation day for a 40-day cycle when the last period started on October 27
- Ovulation day for a 40-day cycle when the last period started on October 28
- Ovulation day for a 40-day cycle when the last period started on October 29
The closest calculation of the day of ovulation for different cycle lengths when the first day of the period was October 25, 2025
- Ovulation day for a 36-day cycle when the last period started on October 25
- Ovulation day for a 37-day cycle when the last period started on October 25
- Ovulation day for a 38-day cycle when the last period started on October 25
- Ovulation day for a 39-day cycle when the last period started on October 25
- Ovulation day for a 40-day cycle when the last period started on October 25
- Ovulation day for a 41-day cycle when the last period started on October 25
- Ovulation day for a 42-day cycle when the last period started on October 25
- Ovulation day for a 43-day cycle when the last period started on October 25
- Ovulation day for a 44-day cycle when the last period started on October 25