Ovulation Calculator
Average cycle length is 28 days
Average luteal phase is 14 days
Average period is 5 days
Your Fertility Details
Next Period Date
--/--/----
Day X of your cycle
Estimated Ovulation Date
--/--/----
In X days
Fertile Window
--/--/---- to --/--/----
Your most fertile days
Conception Probability
XX%
High
Fertility Status
You are in your fertile window. This is the best time to try to conceive.
Conception Probability Guide
- High probability (20-33%): 1-2 days before ovulation
- Medium probability (10-20%): 3-5 days before ovulation
- Low probability (0-10%): Outside fertile window
- Peak fertility occurs on the day before ovulation
Fertility Calendar
Your fertility status for this cycle:
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|
Cycle History
Understanding Ovulation & Fertility
An ovulation calculator helps identify your fertile window based on your menstrual cycle information. Key aspects include:
- Ovulation Date - When an egg is released from your ovary
- Fertile Window - The 5-6 days leading up to ovulation
- Conception Probability - Likelihood of pregnancy on specific days
- Fertility Calendar - Visual representation of your cycle
How It Works
Ovulation calculators use the first day of your last menstrual period (LMP) and cycle length to predict fertility:
Ovulation Date = LMP + (Cycle Length - Luteal Phase)
Fertile Window = Ovulation Date - 5 days to Ovulation Date + 1 day
Conception probability is highest during the fertile window, peaking 1-2 days before ovulation.
Period
Fertile Window
Ovulation
Next Period
Important Notes
Keep in mind that:
- Ovulation prediction is an estimate and may vary
- Cycle irregularities can affect accuracy
- Track basal body temperature for more precise results
- Consult a fertility specialist if trying to conceive for over 6 months
Fertility Boosting Tips
To increase your chances of conception:
- Have intercourse every other day during your fertile window
- Maintain a healthy weight and balanced diet
- Limit caffeine and avoid alcohol
- Manage stress through relaxation techniques
- Consider ovulation predictor kits for accuracy