Fertility Age Check
Model egg reserve depletion patterns. Visualize how maternal age correlates statistically with monthly natural fertilization rates and clinical IVF cycle pregnancies.
Maternal Age Input
20% - 25%
50% - 60%
Recommended Action Path
Your ovarian reserve is in its prime. Focus on healthy habits. If you've been trying for 12 months without success, consult a specialist.
If conception has not occurred after 12 months of regular timed intercourse, clinical fertility screens are recommended.
Maternal Age and Infertility: The Biological Context
The Ovarian Reserve Explained
Unlike men, who synthesize fresh sperm continuously, women are born with their entire lifetime supply of eggs (approximately 1 to 2 million). This reserve declines continuously through normal ovulation and natural cell degradation (atresia). By puberty, about 300,000 remain. By age 30, only 12% of the initial reserve exists; by age 40, just 3% remains.
Egg Quality vs. Quantity
Age affects fertility in two distinct ways:
- Quantity: Evaluated using Anti-Müllerian Hormone (AMH) tests and Antral Follicle Count (AFC) ultrasounds. A lower count represents fewer opportunities to mature an egg per cycle.
- Quality: Relates to chromosome alignment. As eggs age in the ovaries, the cellular machinery responsible for splitting chromosomes (spindle fibers) degrades. This leads to embryos with aneuploidy (incorrect chromosome count), representing the single greatest cause of implantation failure and miscarriage in older women.
How IVF Helps Bypasses Age Barriers
IVF mitigates age-related decline by:
- Using high-dose hormone medication to mature multiple follicles in a single cycle, maximizing egg harvest.
- Performing Pre-implantation Genetic Testing (PGT-A) to screen embryos in the lab, selecting only chromosomally normal (euploid) blastocysts for transfer.
- Enabling the option of donor eggs, which yields 50%+ success rates even for women in their late 40s.