How early can an hiv infecter person infect anothe person?

[JustinT1]

I was tested December 13, 2010.  Then again February 2, 2011.   Both those tests where negative, throughout the holidays I did not have sex.  On January 5, 2011 I had unsafe sex with a guy.   On January 12, 2011 I had unsafe sex with another guy.  That's it in the past 6 months.  The January 12 guy tested positive.  I got a text from him telling me.  The Jan 5 guy says he's negative, although I don't quite believe him.  The only way I could get it was if I got it from the Jan 5 guy then gave it to the Jan 12 guy.  Both times I was only the top.  I did not even suck them.  I just topped.  The guys are 7 days apart.  Is it possible to get infected and then infect someone 7 days later?  Is it likely, highly unlike or just possible?  Also, say I was infectious at day 7.  Wouldn't that mean it was moving along fast and I'd develop antibodies fast?  Meaning, that I'd likely test positive at day 29?  The average person will test positive around day 30, some as early as two weeks.  Since I tested negative at day 29, will I likely test negative again next week when I get tested?  I just want your opinion.  Facts are:

-both times I topped
-is it likely that a guy can infect another guy at day 7?  I was told by my doctor friend that at 7 days a viral load would be very low and that infecting someone would be highly unlikely.  What do you think?
-if I was infection at day 7, wouldn't the HIV be moving along fast and have antibodies fast, meaning a positive test at day 29 was likely?

I know the risk is high, but since I have such exact numbers, and I was tested all around the time I was at risk, I'm wondering if you can give me an estimate of how likely I am to test positive.

And if I test negative next week, I won't have unsafe sex with ANYONE. I'm scared to death right now.

[joggen]

It would be encouraging if that was your only risk, but it wasn't. That's why I suggested that you just get a test tomorrow. Otherwise I'm concerned that you're going to keep going in circles speculating on things for the next 3 days.

[Teak]

There are no tests marketed or sold to give a conclusive negative test earlier than 3 months.

[JustinT1]

Just thinking of the Jan 5 risk.  Do you think the Day 30/31 test of Feb 2 has any significance?  Or was it just too early.

[joggen]

Your Jan 12 partner tested positive so that would be your highest risk. Wed is fine. Let us know how it turns out.

[JustinT1]

Its actually a day longer.  We had sex on the night of Jan 4, technically Jan 5, since it was at 1am.  The test was done February 2 at 8:09 pm.  That would make it day 30/31... still not much difference.... closer to 5 weeks though.  5 weeks would be day 35.

[JustinT1]

I was told to get tested in April, but I'll go next week.  I had planned Wednesday :-X

My high risk would be the Jan 5 risk (the guy I think lied to me).  I was tested Feb 5.  So, that's something.  It was a day 29 test.  4 1/2 weeks.  Hopefully it means something...

People test positive on average between 4-6 weeks and most people will test positive around day 30.  So, my neg result is something... not much though since it was so early.