Worried after oral sex with ejaculation

[Rittal]

Hello,

I a 38 year old male and I had unprotected receptive oral sex with an unknown male in a backroom a week ago. He ejaculated in my mouth. Afterwards, I did my best to spit, and later washed my mouth with water.
I am worried I may have contracted HIV, and was wondering whether you think I should get tested.
I am quite worried.

Thanks a lot for your advice.

[NickOne7]

Let me clear it all up for you, Here is the reasons HIV is not transmitted via oral sex,

The oral cavity and gastrointestinal tract is a "hostile" environment for possible invading microorganisms which is full of enzymes and antibodies which act to neutralize any pathogens to which people are exposed.
  
And here is why HIV is not transmitted via fluids in contact with cuts etc,

They are supplemental tests used in conjunction with an antibody test.
HIV is unable to reproduce outside its living host (unlike many bacteria or fungi, which may do so under suitable conditions), except under laboratory conditions; therefore, it does not spread or maintain infectiousness outside its host.

[Rittal]

Thanks for your answer. I am a bit worried because I don't know whether my gums are solid.

I also worry about the fact that some of the semen shot out over my hand, where I did have a cut wound. I didn't think about it at the time.
I am wondering whether that is a potential risk, and whether the wound has to be bleeding to be considered a conduit, or if a profound cut (without bleed) is also a potential gateway for HIV.
Thanks in advance.

[NickOne7]

ORAL SEX = ZERO HIV RISK

Type oral sex into the search box and read the thousands of replies about this no risk event.

Hope this helps