HIV Risk--Precum, Oral, and Anal

[dchallenge2013]

First and foremost, I want to thank whoever is reading this for helping me, and many others, understand the true risks of HIV.

I had my first ever encounter with a man I met online on May 5. He took me to his apartment and we mutually gave each other oral sex for about two minutes. After that, we went to the shower to "clean up." During the shower, we exchanged oral sex for another five minutes, more or less.

After the shower, we decided to have sex. In his room, he got a condom (wrapped, unused) and lube. He put on the condom and lubed it and began. I always made sure the condom did not come off. Since his penis was not so big, he did not take the entire space of the condom, therefore there was some loose "condom" in the front (so the condom was lubed and it was not stretched since the penis did not take the entire space) He penetrated for about five minutes, then he took off the condom and switched it with a new one--we did this to not wear out the first one.

He did not come because I got nervous and told him to stop way before he "cummed." It was also obvious because he wanted to continue, but I did not let him. After the sex, I went to the bathroom and filled both condoms with water to see if there were any breaks or leakages. I did not see anything, but my mind is playing tricks on me and now I'm doubting myself and convincing myself that I missed something.

I was never exposed to full-ejaculate.

My Questions/Concerns:

-Generally speaking, what is my risk of acquiring HIV from this incident?
-What if some pre-cum got on the outside of the condom while he was putting it on along with lube?
-He also used his saliva as extra lubrication here and there on the outside of my anus.
-For the oral sex, I brushed my teeth an hour before I performed it. Plus, I have always had
enlarged tonsils due to an infection when I was a child.
-A couple of days later, I got a canker sore (I get those a lot) and I had some tonsil stones.

In conclusion, I was never exposed to full-ejaculate. I had unprotected oral sex, but protected anal sex.

Please Help! I would greatly appreciate it.

[dchallenge2013]

Thank you so much Teak for those encouraging words.

I do have to admit, however, it is hard not to overthink the situation. For instance, I am now thinking what if the pre-cum leaked through the back of the condom and somehow made it into my rectum or during foreplay, what if the tip of his penis (which must've had some pre-cum) touched the outside of my anus.

Would those scenarios also pose a high risk?
Thank you in advance.