As women get older, it becomes harder to become pregnant naturally or through IVF. This is because both the number and quality of eggs decrease with age.
| Age | General live birth chance per IVF cycle* |
|---|---|
| Under 35 | ~40–50% |
| 35–37 | ~30–40% |
| 38–40 | ~20–30% |
| 41–42 | ~10–20% |
| Over 42 | Usually less than 5–10% |
These are approximate ranges and vary by clinic, diagnosis, embryo quality, and individual health.
Key Message: Age is one of the most important factors affecting IVF success. Starting treatment earlier generally gives a better chance of pregnancy. However, every woman is different, and many women still achieve successful pregnancies with the right treatment and care.