Infertility does not cause physical symptoms. Infertility is a general term for a couple's inability to get pregnant after 1 year of having sex 2 to 3 times a week without using birth control methods.

For women younger than age 30 with unexplained fertility problems, some doctors will diagnose infertility and offer treatment to a couple only after 3 years of their trying to become pregnant.

For women over 35, some doctors will offer testing and treatment after 6 months of trying to become pregnant.