Effectiveness depends on the user: Risk of pregnancy is greatest when a woman is late to start a new ring.

  • As commonly used, about 7 pregnancies per 100 women using the combined vaginal ring over the first year. This means that 93 of every 100 women using the combined vaginal ring will not become pregnant.
  • When no mistakes are made with use of the combined vaginal ring, less than 1 pregnancy per 100 women using the combined vaginal ring over the first year (3 per 1,000 women).

Return of fertility after ring use is stopped: No delay

Protection against sexually transmitted infections: None