I tested negative for all STIs and NAAT HIV at HIM clinic 8 weeks after receiving unprotected oral sex. My NAAT tests and STI results after 4 weeks at Bute Clinic and after 6 weeks at the Main STI clinic were also negative. Can I trust the results and quit testing or do I need more testing? Thnx

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Home / Answered Questions / I tested negative for all STIs and NAAT HIV at HIM clinic 8 weeks after receiving unprotected oral sex. My NAAT tests and STI results after 4 weeks at Bute Clinic and after 6 weeks at the Main STI clinic were also negative. Can I trust the results and quit testing or do I need more testing? Thnx

I tested negative for all STIs and NAAT HIV at HIM clinic 8 weeks after receiving unprotected oral sex. My NAAT tests and STI results after 4 weeks at Bute Clinic and after 6 weeks at the Main STI clinic were also negative. Can I trust the results and quit testing or do I need more testing? Thnx

The testing you had for chlamydia, gonorrhea, and HIV NAAT should all be accurate 8 weeks after the unprotected oral sex. That means you can trust the test results for those STIs and you do not have to repeat them.

With syphilis, test results are usually accurate after 6 weeks, but it can take as long as 3 months to show up in your blood. You may want to go for a follow up syphilis test 3 months after you had the unprotected oral sex.

If you want to know more about how long it takes for a test to become positive (window period), you can check out our chart “STIs at a Glance“.

Please leave a comment to let us know if this answered your question or if you need more info.

Health Nurse

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This answer was posted on October 26, 2012.

This answer was updated on February 7, 2022.