Cruiser's unprotected oral drama

[AndyC12]

I'm a 31 year old gay male. I developed an intense curiosity during the end of last year, the first five months of this year on a cruising spot which is in a mall's public bathroom in the capital of my island.
Usually I was enjoying mutual masturbating, but then I was also giving oral sex to the men I've encountered which were of unknown status. (I've had 5 encounters in the lapse of months).
Months ago I gave a man a brief blowjob. I didn't notice anything at first, because part of his penis was still in his pants, when he pulled it out completely I saw he had a raw spot at the base of his penis (it wasn't a blister or a sore, it looked more like a cut). His penis wasn't completely in my mouth, partly because he had a large one and my mouth didn't touch the raw spot.
I did an HIV test in June, after I confessed to my partner of my cheating (didn't mention the cruising spot). It came back Negative, but I can't stop worrying about it because I can't remember when that encounter happened. My calculations was between March and May, so 6 to 11 weeks to the date I tested. I remember I also recieved oral sex from another man.

My question is am I still at risk? Needless to say, I'm in therapy for my behavior and my therapist says I should move on. Should I do so?

[AndyC12]

Thanks Vance. I've been also reading the post in the Expert Forum regarding the risks.
I haven't taken other STD tests, mainly because I haven't experienced any other symptoms, but I'll take your advice.
I just want to put this behind me and move on.

[Vance2335]

Yes you should. Oral sex is not a risk with HIV. But you do have a risk of other STD's which you should test for if you have not already.