I had protected sex with this lady but the rubber burst just as i was about to come. The thing here is that she sent me an sms after 2 days telling me she just went for an HIV test n tested positive. Luckily i was well aware of this PEP(Post-Exposure Prophylaxis) thing. Therefore i consulted my Dr before the period of 72hours was over, actually i started taking the treatment 56 hours after the incident. I'm just afeard This might not work with me. What are the chances of me testing negative 3 months after this 28 days course ?