 This study will inform international medical guidelines as to whether the Levonorgestrel intrauterine device LNG IUD, a highly effective long-acting reversible contraceptive method, is safe and acceptable as compared to the copper intrauterine device C-IUD for HIV-positive women in Cape Town, South Africa. If the LNG IUD is found to be safe and acceptable, the introduction of this method to HIV positive women in developing countries could significantly reduce unplanned pregnancy and mother-to-child transmission of HIV, and confer non-contraceptive benefits to HIV-positive women in Sub-Saharan Africa. 