Hello doctors. I consider myself a heterosexual male and am in a committed relationship with a female. I recently had an encounter with a male I met online thru an app called sniffies. He also is married to a woman and from what he said he doesn’t have any reason to believe he has any stds. I don’t know if I can trust that but we did speak afterwards and he stated that he is clean. I gave him a protected blowjob using a condom on 3/16/26. It must have lasted no more than 2 minutes. After that I stopped and we just continued to masturbate. The only contact that was made was with my mouth on his penis and he wore the condom for the whole duration. I immediately panicked afterwards and that same night I started a ten day course daily of amoxicillin Clav 875/125 mg. That same night I also took doxycycline 200mg but realized that it had expired 5 months previously. I was able to get ahold of another doxycycline 200mg dose and took that 46 hours post the protected blowjob I gave. I went to test for syphilis on 4/6 which was 3 weeks post the event. My results came back today as negative. I do have the following questions regarding the incident that transpired and the antibiotics I took.