is there any difference on hiv window

[Edwin90]

Am a 24 years old man from Zimbabwe who had an unprotected vaginal sex with a CSW sex 12.3 weeks ago. Did have tested at 3.6 weeks using an Elisa Combo test from one of medical laboratory in the country and the result was non reactive, got tested again at 7, 8, 9 weeks at local VCT using an Alere HIV 1/2 antibody kit all negative, at 10.3 weeks had a DNA PCR test which came negative, at 11.6 weeks got another antibody test which came negative and lastly at 12.3 weeks repeated an antibody test and came negative at a local clinic. The nurse who did my last test told me that the window period in Zimbabwe stretches to 12 months and said I should retest at 6 months. But reading on this forum and Dr Tan Forum they said 12 week test are conclusive. Am really confused so as to take another test since the first 3 months was like living in hell. My question 1) is window period differs country by country 2) are all my test conclusive.

[Edwin90]

This is what the nurse told me and I became scared.

[Teak]

It doesn't.

[Edwin90]

Thank Teak for your quick response, one last question, mayb am been paranoid. Why in my country says window period stretsches from 3 week to 12 months, this is reall confusing and has driven me back to anxiety about my status.

[Teak]

You are conclusively negative.