Fertility by Age Calculator
Understand how age affects fertility rates and conception chances
Calculate Your Fertility by Age
Click to quickly select common ages
Your Fertility Statistics
Ovarian Reserve Indicators
Personalized Recommendation
Good time to start or continue family planning
Medical Disclaimer
These statistics are population averages and may not reflect your individual fertility. Many factors beyond age affect fertility. Individual results can vary significantly. Always consult with a healthcare provider for personalized fertility assessment and family planning advice.
Fertility Timeline
Peak Years
25% per cycle chance
Highest fertility rates
Gradual Decline
15-20% per cycle
Still very good fertility
Significant Drop
5% per cycle
May need assistance
Factors Affecting Fertility
Age (most significant factor)
Overall health and nutrition
Lifestyle factors (smoking, alcohol)
Weight and exercise
Stress levels
Medical conditions
Understanding Your Cycle
Fertile window: 6 days per cycle
Peak fertility: Day of ovulation
Sperm survive: Up to 5 days
Egg survives: 12-24 hours
Fertility by Age Comparison
| Age Range | Per-Cycle Chance | Yearly Chance | Miscarriage Risk | Average Time |
|---|---|---|---|---|
| 19-25 | 25% | 85% | 10% | 3 months |
| 26-29 | 20% | 75% | 11% | 4 months |
| 30-34 | 15% | 70% | 12% | 5 months |
| 35-39 | 10% | 55% | 18% | 8 months |
| 40-44 | 5% | 30% | 34% | 12 months |
| 45-49 | 1% | 10% | 70% | 24+ months |
Understanding Fertility and Age
Why Age Matters
Women are born with all the eggs they'll ever have. Unlike men who continuously produce sperm, a woman's egg supply decreases throughout her life, and the quality of remaining eggs also declines.
Key Age-Related Changes:
- • Egg quantity decreases (ovarian reserve)
- • Egg quality declines (chromosomal abnormalities)
- • Hormone levels change
- • Cycle irregularities increase
- • Pregnancy complications rise
Optimizing Fertility
While age is the most significant factor, lifestyle choices can help optimize fertility at any age.
Fertility-Boosting Tips:
- • Maintain healthy weight (BMI 18.5-24.9)
- • Take folic acid supplements
- • Avoid smoking and limit alcohol
- • Manage stress levels
- • Exercise regularly (moderate intensity)
- • Track ovulation patterns
When to Seek Help
Under 35
Seek fertility evaluation after 12 months of trying to conceive with regular, unprotected intercourse.
35 and Over
Seek fertility evaluation after 6 months of trying to conceive. Earlier intervention may improve outcomes.