A couple is considered infertile if there is a lack of pregnancy after one year of unprotected intercourse. Infertility is classified as primary or secondary depending on medical history. Primary infertility is when a couple has never achieved a pregnancy before. Secondary infertility is where the couple is unable to conceive after they have already had a child. History of pregnancy includes all pregnancies, even those that resulted in miscarriage or ectopic pregnancy. The cause of infertility is approximately 1/3rd male causes and 1/3rd female causes and 1/3rd a combination of male and female causes.
It is estimated that one in six couples face difficulties when conceiving.