Before revision: 450px|Percentage of births to unmarried women, selected countries, 1980 and 2007 Premarital sex is sexual activity which is practiced by people before they are married.
After revision: , also known as fornication,450px|Percentage of births to unmarried women, selected countries, 1980 and 2007 Premarital sex is sexual activity which is practiced by people before they are married.