An HIV-positive person who takes HIV medications correctly and achieves and maintains an undetectable viral load (meaning, the amount of HIV in their blood is so low that it can’t be detected with tests) for at least six months has no risk of sexually transmitting the virus to an HIV-negative partner. This is known as U=U (Undetectable = Untransmittable).
However, in any relationship, particularly a new relationship, it takes time to get to know and trust your partner. How long have you been dating this person? How well do you know them? Are you having sex with other people or do you have an agreement to be just with each other? PrEP is a great way to take your health into your own hands and protect yourself from HIV, regardless of your partner’s status.