I am a male. Had a protected vaginal sex but unprotected insertive oral sex with female SW. Tested negative on hiv combo test (antigen antibody) , equipment Hiv duo ultra by Vidas and CMIA by Abbott, on post 3 week exposour, 4 week, 5 week, 6 week. All came negative. What to do now. Is there any further kind of test to remove severe mental stress?