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Window Period

Test 4 weeks after PEP, 8 weeks after exposure


I'm a Portuguese male (therefore, please apologize me for the English mistakes I'll make in the following text).

I had vaginal sex with a Brazilian female prostitute on the 3 August in Lisbon. The condom broke, and I only realized that at the end of the act - she assured me she was HIV negative (but I didn't trust her).

I was put on PEP 5 hours later (Truvada + Retrovir).

I took PEP for 25 days straight (I stopped 3 days earlier - side effects were killing me).

I tested negative at the following dates:

3 weeks after exposure (third generation rapid test);
6 weeks after exposure (third generation rapid test);
7.5 weeks after exposure (third generation rapid test);
8 weeks after exposure (fourth generation hospital duo-test);

My doctor told me to forget about the HIV question and to turn the page, because she's 100% sure I'm not infected.


1) Do you think - 100% sure - that I'm not infected?
2) Have you ever seen someone in my position testing positive on a later stage?
3) How reliable are my tests, knowing I've taken PEP that alters the window period?

Thank you very much. Your work is very helpful, even in a worldwide scale.

7 Weeks test negative but Fever is not going away

I tested negative on rapid test at over 7 weeks ( 7 weeks and 6 days). However the nurse told me that I need to wait for 12 weeks to confirm the results. I am having many symptoms of the disease including low grade fever (for last two weeks, chills and sweat in the night).

History of symptoms:-

First 5 Weeks:-

No Symptoms

Week 6 - Week 7:--

Nausea, Headache, occasional night sweats

Week 8 - Week 9 (current week):-

I am having a low grade fever with chills and sweat in the night.

I want to know what is my chances of being infected by HIV. Its too difficult for me to wait for 12 weeks result.

Pain lymph nodes

Hi I'm 29 male I had unprotected sex 36 days ago I did the 4th generation test after 25 day from the relationship and it came back negative at the day 26 I had pain all around my ear ,nick and under my arms both sides but nothing swollen yet
My question is how accurate the test that I had?
And how long it takes the lymph node to swelling after the pain begins


test results assessment with hiv symptoms

Hi everyone. I would just like to get your opinion regarding my risk/possible exposures and the results of my previous tests.

June 7 (possible exposure # 1) - unprotected anal and oral sex with a guy met from an online application with ejaculation on mouth only

June 9 - sore throat, diarrhea, low grade fever, diarrhea, night sweats, muscle pains (arms, legs, back) all for 6 days.

July 30 (7.5 weeks past exposure # 1) - tested negative at a local clinic using HIV antibody rapid test

August 14 (possible exposure # 2) - gave unprotected oral sex with ejaculation, upper gums got swollen in the afternoon

August 24 (11 weeks past exposure # 1) - tested negative using an approved Philippine home HIV test kit (finger prick blood)

August 30 (2 weeks past exposure # 2) - high fever for 2 days, nausea, headache, diarrhea for 1 week

I was so paranoid and related these symptoms to my oral sexual encounter last August 14. My gums got swollen that day and I thought that I could have an open sore that time which led to the possible infection. What makes me more bothered is that I got the fever around 2 weeks after, when ARS typically appears

September 12 (4 weeks past exposure # 2) - Due to paranoia and since I haven't purchased a new HIV kit yet, i re-tested using the kit I used last August 24, since there was still a reagent/HIV buffer left. Before re-using, I was so sure that there was no indication of any line in the T area. After putting blood and the buffer, there was a faint line that showed in the T line!

September 27 (6 weeks past exposure # 2) - tested negative using a new HIV kit.

Now, my questions:

1. I know it was a dumb idea to re-use the kit, but why is there a faint line that appeared? Is it because I re-used the kit? I was thinking there could be something that really reacted from my blood, because if there is nothing, then it should have stayed the same, with nothing appearing on the T-line.

2. Is the September 27 test more reliable? I know that 3-month test is conclusive, but could this be a false negative, given that a faint line appeared on my September 12 test? Did I just use the kit wrongly this time, that's why there is no faint line that appeared?

3. If my September 27 test was indeed accurate, am I cleared of my June 7 exposure?

4. Given my oral exposure last August 14, should I re-test at the three month mark?

What are your thoughts?

Can having flu affect hiv test result?

I have read in many website including this one that flu shots does affect hiv test outcome. What about having the real flu? Will it affect too?


What does <1.00 mean ?

I went to a clinic where my friend works got blood work done for an hiv test acouple days later I got results back that said hiv-1/hiv-2 antibodies reflex confirmation western blot non reactive <1.00 cut off <1.00
I did this test post 35 days (5 week after exposure. Im very scared I didn't ask for a western blot does that mean I had a positive before and they had to confirm it?
Do you think it will change after because it is borderline <1.00 ? Do people usually get less than <1.00 ??

hello again

You guys have been such a help for me so first i would like to thank you for your job , your patience and answering every question that i or anyone posting here ever had !
Really thank you .

I been asking so much for the past 2 months , about my hiv test generation, about it accuracy .....I have been testing so much but it seems that my anxiety doesnt want to go away from me .

Ac anti hiv duo serum/plasma ECLIA , i could not find nowhere something that says is fda approved and neither that is a fourth generation test , i mean no webpage for this hiv test . If you could provide me one i would be extremely grateful to you . I am not doubting your knowlege about hiv tests but i need a peace of my mind i still think i am infected

Can anyone hiv test results change from 3 to 6 months ? I am a healthy young woman who never got hospitalized but what if i been infected with HCV during my vaginal intercourses ? I took a test for it HCV and every other STD at week 12 and was back negative . Can Hep C delay hiv window period ?

Do u think i need more testing ? I cant move on with my life . I want to but i just can not :(
My first hiv test was at week 4 and my last at day 83 , one day shy from 12 weeks .


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