It is a biological fact that fertility decreases with age. The decreased odds of getting pregnant are due to normal changes that occur with aging. Women are born with a limited number of eggs. Since no new ones are formed throughout a woman’s life, the number of eggs steadily declines over time. As women age the quality of their eggs declines as well. This doesn’t mean that you should run out and get pregnant, or resolve to never have kids. But you should understand the facts. Bottom line: every woman’s body ages at a different rate and there is no way of knowing for sure what your fertility will be like, say 10 years from now.