8% to 18% of people in the United States are unable to conceive and have children. Usually, 80% to 90% of healthy couples will conceive within 1 year of trying to conceive. Infertility often refers to the inability to conceive after one year of trying. Infertility can be divided into primary and secondary as the basis for fertility. Women who had never been pregnant were in primary care, and women who had been pregnant more than a year ago were in secondary care. More than half of infertile people were in primary care. and difficult to get pregnant after the age of 30
