Infertility primarily refers to the biological inability of a person to contribute to conception. Infertility may also
refer to the state of a woman who is unable to carry a pregnancy to full term. There are many biological causes of
infertility, including some that medical intervention can treat.
Women who are fertile experience a natural period of fertility before and during ovulation, and they are naturally
infertile during the rest of the menstrual cycle. Fertility awareness methods are used to discern when these changes
occur by tracking changes in cervical mucus or basal body temperature.