Women know that fertility wanes after age 35. So while many are psychologically prepared for difficulty getting pregnant in their late 30s, few expect to encounter the same trouble in their 20s.
Aging affects ovulation, but so do other health conditions. Polycystic ovarian syndrome (PCOS), the most common cause of infertility in women, interferes with ovulation, as does primary ovarian insufficiency (POI). Endometriosis and pelvic inflammatory disease (PID) can block the fallopian tubes, and uterine fibroids can hinder fertility in several ways.
No woman struggling with her fertility in her 20s should feel alone. While it may come as a surprise at that age, infertility is common, and affects more than 6 million women in the United States, and there are plenty of treatment options available [source: CDC].