The main symptom of infertility is failure to conceive after a year of unprotected sex. This is the point at which most doctors recommend seeking fertility care. For women over age 35 who did not conceive after 6 months of trying or who have irregular menstrual cycles, seeing a fertility doctor as soon as possible is recommended. Male infertility is just as common as female infertility, so it’s important that both partners be evaluated. The treatment involves a series of tests and advice for men and women.