Infertility in women refers to the inability to conceive or carry a pregnancy to full-term. It is a common condition, affecting the lives of over six million Americans under 45 years of age. A woman is considered infertile if they have not been able to get pregnant for one year. If they are 35 or older, this timeframe is reduced to six months. Infertility can be caused by problems affecting any aspect of conception, including ovulation, egg transportation, fertilization and implantation.