Mutual masturbation, deep kissing.sti tests at 8 and 10 weeks (syph, hiv, chlam & gono all neg). i know conclusive for most but is this conclusive for syphilis? seen mixed opinions.people ever test neg at 10 weeks then positive later? need re-test?

If you tested negative at 10 weeks after potential exposure, you did not catch syphilis. Visit these sites for info: Syphilis window period: https://www.e7health.com/post/155/std-test-window-when-should-i-get-tested/#:~:text=The%20average%20window%20period%20or,it%20develops%20in%20three%20stages. https://www.cdc.gov/std/syphilis/stdfact-syphilis-detailed.htm

Nothing in medicine and life is 100% or fool proof. Taking that into consideration you should be OK and need no more testing. Pl be careful. i