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It sounds like you are really worried. Keep in mind that that if you do get symptoms of early HIV infection (seroconversion illness) they usually happen about two to four weeks after you come in contact with HIV. You are almost 7 weeks past the time you had sex.
I can't tell you how accurate the tests you ordered are, because they have not been approved for use in Canada. I don't know if they were studied and not approved, or if they were never studied.
In Canada, the INSTI Rapid HIV test is the only test licensed for use in healthcare settings, and is the only one used in Vancouver clinics. You cannot buy this test online, so you would need to go to a clinic to get the INSTI test done.
The HIV tests we use are 95% accurate at 6 weeks. There is a small possibility (5%) that the test result will change between 6 weeks and 3 months.
It is true that the test your sexual partner had may have been done too early to be accurate. It takes time for antibodies to show up in the blood and be found with HIV testing. With the HIV rapid test, the virus is usually found in the blood within 6 weeks, but it can take up to 3 months. The only way you can know is to get tested yourself.
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This answer was posted on March 21, 2013