What are the side effects of the shot (Depo Provera)?
Women who use the shot may experience a change in their periods. Bleeding may be irregular at first, and most women stop having their periods after a few shots. As with other hormonal methods women may experience some nausea. Long term use of Depo Provera can cause a reduction in bone density. Adolescents and young women who are considering using Depo Provera should consider the risk of a reduction in bone density since this an important time in their lives to build bone density. However, studies have shown that most females regain the lost bone density after stopping use of Depo Provera.