Similar to other studies, the factors associated with pregnancy incidence were related both to sociodemographic characteristics, such as age 1,2,4,6,22,28,29,30, number of children 1, and use of contraceptive methods 6, and to HIV infection characteristic, such as CD4 nadir 2,6,22,29, viral load 4, and use of ART medication 4,7,.31 This evidence concerns the gene CD4 and HIV infectious disease.