I had a oral encounter with a male. I got worried after it as it was in protected and took a biosure test – well 3 of them at different intervals with the longest being 200 days after. My question is can I be totally sure? I read some of the replies to the questions and the answer that’s given is as long as your out with the test window your test is “conclusive” but when I look on the likes of the uk’s NHS websight, they just says it’s likely your don’t have hiv if the test is negative outside the window. I would like to know is it conclusive or likely ?