The International Council on Infertility Information Dissemination (INCIID) considers a couple to be infertile if: they have not conceived after a year of unprotected intercourse, or after six months in women over 35; there is incapability to carry a pregnancy to term. Healthy couples in their mid-20s having regular sex have a one-in-four chance of getting pregnant in any given month. This is called "fecundity".