What is female infertility? Infertility is a disease in which the ability to get pregnant and give birth to a child is impaired or limited in some way. For heterosexual couples (man and woman), this is usually diagnosed after one year of trying to get pregnant (but may be diagnosed sooner depending on other factors). For heterosexual couples, one third of causes of infertility are due to a male problem, one third are due to a female problems, and one third are due to combination or unknown reasons. When the cause of the infertility is found to come from the female partner, it’s considered female infertility or “female factor” infertility.