Large amount of women trying to conceive for the first time panic if their periods last for more than three or four months. But the standard sign of infertility is unsuccessful conception after 12 months of unprotected sex. At that point, a couple should seek a exhaustive examination that is usually includes menstrual and pregnancy history, ovulation tests, semen analysis, and usually a laparoscopy to discover endometriosis or pelvic adhesions. Such testing ascertains the causes of infertility in 60 to 80 % of all couples.
Fertility drugs, forms of hormone therapy, are developed to cheat the ovaries into producing eggs, sometimes many eggs in a single cycle, by stimulating the woman's hormones to doperform} their assigned jobs more efficiently or by replacing them with artificial hormones.