In the last 30 years, fertility rates for women age 20 to 24 has declined by 43% while first-time motherhood between the ages of 35 to 39 has increased by 67% [1] Fertility Rates: Declined for ...

and fertility rates for women over 30 to gradually rise. Chart 1 shows age-specific fertility rates by five-year age groups in the United States since 1970. The total fertility rate is not able to ...

Fertility peaks between the late teens and 20s, when women have an 85% chance of conceiving within a year. By age 30, that percentage drops to 75. At 40, it's sunk to 44%. "Aging eggs are not your ...