Abstinence is when you voluntarily refrain from engaging in sexual activity. For some individuals this may mean not having intercourse. To others it may mean not having any genital contact. No genital contact is the best protection against STDs. Abstinence is a positive, healthy choice many people make.
Safer sex entails a wide range of sexual activities.
Some sexual activities carry no risk infection. Other have limited risk. If you do choose to have sexual intercourse it is important to practice responsible sexual behavior. This entails taking a number of precautions. Barrier options include non-spermicidal latex condoms and dental dams.