In a study of 11,426 teens, almost 18 percent of all seventh and eighth graders, and almost half of all ninth through twelfth graders indicated that they had already had sex.

Many parents find these statistics alarming. Our teen sexual behavior calculator can help you assess your teen's likelihood of having sex. The answer can help you educate your teen about the consequences of early sexual activity.

Please select the appropriate response to the following question:

Question 1: Would you characterize your relationship with your teen as close and caring (i.e. satisfactory relationship with mother and/or father)? Yes No

The information on this Web site is provided as a public service by the University of Maryland Medical System, a regional health care delivery system that includes an academic medical center (the University of Maryland Medical Center in downtown Baltimore) as well as five community and specialty hospitals and outpatient sites throughout Baltimore and central Maryland. This information is not intended to be a substitute for individual medical advice in diagnosing or treating a health problem. Please consult with your health care provider about your health care concerns. If you would like to make an appointment with a University of Maryland physician, please call 1-800-492-5538.