Hello, thank you for taking your time to answer my question.
I had possible STD exposure on February 1st 2015. I took an HIV antibody test on March 3rd, which came back negative. I took Transcription-mediated amplification HIV RNA test April 7th which came back negative. I took a 4th generation HIV RNA test April 14th, which came back negative. Finally, I took another HIV antibody test May 18th, more than 3 months after possible exposure, and that came back negative. Is there still a chance I could have gotten infected? Should I still get retested at the 6 month mark?