★ Calculate your ovulation dates & fertile window ★ Track menstrual cycle & predict conception chances ★ Trusted by over 2 million women trying to conceive ★
Get accurate fertility predictions, ovulation calendar, and conception timing. Plan your pregnancy journey with our comprehensive fertility tracker and ovulation calculator.
🌟 Most Accurate Fertility Calculator - Used by fertility specialists, gynecologists, and women worldwide
Normal range: 21-35 days (average 28 days)
Normal range: 3-7 days (average 5 days)
Input the first day of your most recent menstrual period for accurate calculations.
Choose your average cycle length (21-35 days). Track for 3+ months for best accuracy.
Get your ovulation date, fertile window, and best conception timing instantly.
The day your ovary releases an egg, typically 14 days before your next period. Highest conception chance.
6-day period including 5 days before ovulation plus ovulation day. Sperm can survive up to 5 days.
Best chances occur 1-2 days before ovulation when cervical mucus is clear and stretchy.
Our fertility calculator is highly accurate for women with regular cycles (21-35 days). It uses the standard ovulation prediction method used by fertility specialists. Accuracy improves when you track your cycle for 3+ months.
You're most fertile during your 6-day fertile window: 5 days before ovulation plus ovulation day. The highest conception chance (25-30%) occurs 1-2 days before ovulation when cervical mucus is clear and stretchy.
If your cycle varies by more than 7 days, track for 6+ months to find your average. Consider ovulation predictor kits, basal body temperature tracking, or consult a fertility specialist for irregular cycles.
Try for 12 months if you're under 35, or 6 months if you're over 35. See a doctor sooner if you have irregular periods, known fertility issues, or other health concerns.
Key ovulation signs include: clear, stretchy cervical mucus (like egg whites), slight temperature rise, mild pelvic pain, increased libido, and breast tenderness. Track these signs alongside our calculator.
Wait at least 14 days after ovulation for accurate results. Testing too early can give false negatives. Our calculator shows your optimal testing date based on your cycle.
While unlikely, it's possible due to cycle variations, early/late ovulation, or sperm survival. The fertile window represents your highest conception chances, but pregnancy can occur on other days.
Age, weight, stress, diet, exercise, smoking, alcohol, medications, and underlying health conditions all impact fertility. Maintain a healthy lifestyle and consider prenatal vitamins when trying to conceive.
Calculate exact ovulation dates and fertile windows for optimal conception timing.
Monitor your menstrual cycle patterns and fertility signs over time.
Make informed decisions about conception timing and pregnancy planning.