A 19-year-old woman is seen for her first prenatal visit, and it is late in the pregnancy. She is newly diagnosed with HIV at this initial prenatal visit. An ultrasound is performed that estimates she is at 33 weeks’ gestation. Baseline laboratory studies were sent, and 2 days later the initial laboratory studies showed a CD4 count of 288 cells/mm³ and an HIV RNA level of 91,780 copies/mL. Results from HIV drug resistance testing are pending. She has never received long-acting injectable cabotegravir.