Welcome back to the forum. I'll try to help.
As you probably have seen in reviewing other discussions on this forum, the modern HIV antibody tests in current use detect virtually all infections by 6-8 weeks, even though official advice by the test manufacturers, CDC, etc is that 3 months is required for definitive testing. So in my opinion, you can be 100% certain you didn't catch HIV and can stop worrying about it and stop testing. Below is the link to a thread that explains why offical advice remains 3 months despite apparent 100% reliability with earlier testing:
http://www.medhelp.org/posts/HIV-Prevention/-A-Question-on-Testing/show/1347755
However, despite my comments above and the available scientific evidence, I recommend you have one final HIV test. Even with the scientific data, when the risk is especially high, such as sex with a known infecgted partner, Dr. Hook and I generally advise testing according to the official guidelines, i.e. at 3 months or more. We suggest it primarily for reassurance; since the official advice is 3 months, my guess is that until you are tested at that time, you're going to remain nervous about the slim possibility.
As for resisting testing because of the stress, that makes no sense at all. You're already stressed to the max. And research shows that when people who are nervous about testing finally do it, their stress levels go down -- even if the test is positive. The stress or not knowing and worrying about it is worse than the stress that comes from actually having HIV.
So my advice is to have a final test for reassurance, and to stay mellow about it in the meantime. You can be very, very certain the result will be negative. Feel free to return with a comment to report your final test result, but let's not have any further discussion until then. There is nothing you can add that would change my opinions or advice about it.
Best regards-- HHH, MD