In BC Canada the most common type of blood test we have is a HIV antibody test which is 95% accurate by 6 weeks and gives you a final result at 3 months.
We normally recommend doing a follow up HIV test at 3 months, but as you can see your HIV test at 7 weeks would be more than 95% accurate.
It really depends on what chance there was in getting HIV in the first place. If the reason you had a HIV test was because you were concerned that the type of sex you had could easily pass HIV I would recommend getting a follow up test at 3 months.
If you feel there was no real chance of getting HIV but you just had the HIV test as part of an STI check up, I would say to just get another HIV test the next time you schedule a STI check up.
Have a look at our “Know your chances” web page, it provides information on your chances of getting or passing an STI depending on how you are having sex.
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