An official website of the United States government
Reproductive Health
Data are for the U.S.
Teenagers
- Percent of never-married teens ages 15-19 who have ever had sexual intercourse:
- Females 41.4%
- Males 40.1%
Source: Key Statistics from the National Survey of Family Growth (data are for 2017-2019)
Women
- Mean age at first menstrual period for women ages 15-49: 12.4 years
- Percent of women ages 15-49 who have ever been treated for pelvic inflammatory disease (PID): 3.7%
Source: Key Statistics from the National Survey of Family Growth (data are for 2017-2019)
Related FastStats
More Data
- Use of Fertility Services in Women Ages 20−49 in the United States: 2022−2023
- Infertility and Impaired Fecundity in Women and Men in the United States, 2015–2019 [PDF – 455 KB]
- Teenagers in the United States: Sexual Activity, Contraceptive Use, and Childbearing, 2015-2019 [PDF – 773 KB]
- Fertility of Men and Women Ages 15–49 in the United States: National Survey of Family Growth, 2015–2019 [PDF – 650 KB]
- Total Fertility Rates by Maternal Educational Attainment: United States, 2019 [PDF – 237 KB]