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 30, some health professionals will diagnose a couple with infertility and offer treatment only after 3 years of trying to become pregnant. For women over 35, some health professionals encourage beginning testing and treatment after 6 months of trying to become pregnant.