I am going to make this short and concise.
I am a 26 year old heterosexual male who does not use drugs. I had unprotected vaginal sex with an ex, who I know sleeps around and does not use protection.
39 days after the encounter I visited a local clinic for a free anonymous rapid point-of-care test (3rd generation ELISA, I believe) which was negative.
Being concerned about some minor pain, which I sometimes experienced in my neck, armpits, and groin, I called the test center to ask about the reliability of my test. Oddly, the person I spoke to told me it was not conclusive (as I was not told this during my test) and that I had to be retested at 12 weeks, because my result was only 97-98% reliable.
My questions are:
1) What is considered late seroconversion? Seroconversion after 6 weeks or after 3 months?
2) What are possible reasons for late seroconversion? Only drug abuse and a weakened immune system? Or is it normal for a healthy person to seroconvert later than 5-6 weeks?
3) Do you know people who have tested positive at 3 months after receiving a negative test at 6 weeks?
4) Can painful lymph nodes without any swelling or any other symptoms indicate late seroconversion, if they started during week 6.
5) What would you consider my risk to be? Should I be worried, since I am extremely anxious about my current situation.