The answer to this question is tricky because there is no medical definition of virginity and depending on a person’s culture, religion, and life experiences, “losing your virginity” could mean: when you become sexually intimate with someone, when you have oral sex or when you have had penis-in-vagina sex. There is no such thing as a “normal age” to start having sex however, according to a research study, 39% of high school girls in the United States reported ever having sex. Becoming sexually active is a big decision. The percentage of high school girls and boys having sex has decreased a lot since 1991 (54% to 41%). You should always feel safe with your partner and you should never feel pressured into having sex—it should always be YOUR choice.