Infertility can stem from numerous problems. It is estimated that as high as one in ten couples cannot conceive a child. There are an estimated 1.8 million women in the United States who are classified as infertile, which is about 5 percent of the female adult population of reproductive years.
Infertility can stem from the male reproductive system about 40 percent of the time, the female system about 40 percent of the time. But it also is a combination of problems shared by both partners a majority of the time.
A couple is considered for fertility testing after a prolonged period of time in which they have actively been trying to conceive and have been unable. A prolonged period of time should be considered at least several months, and probably one year. After that, you should consult with your doctor about the need to test for fertility problems.