Yes. Once your baby is born, they will need to take HIV treatment to help prevent HIV infection.
After a few weeks your baby will be tested for HIV. If the result is negative, they can stop taking the treatment.
Your baby should be tested again at 18 months (and/or at the end of breastfeeding if this is later). This is the final test to make sure they are HIV-negative.
If the result is positive for either of these tests, your baby will need to start treatment straight away.