Thank you for posting on HCM
It is normal reaction when confronting with an incident of unprotected sex with an unknown person. Given your description, the chances of getting HIV like that are almost reduced to 0% (but the chances are still there). Most at times for a HIV woman to infect a non-HIV man it will require a lot of intimate sex with considerable friction between the vagina and the penis (chances increases with bruises or lacerations
of both sex organs). Vaginal fluid contains HIV as presented by well known organizations such as CDC, WHO etc but touching and it dropping on you does not mean you will be HIV infected.
My suggestion is you should do a HIV test
now (which will only show your own status report and not infection from the girl) then repeat test after 3 months (period of seroconversion
) to verify that the infection has not developed in due course from the time of sexual contact. I recommend this because the venue of HIV is not yet completely exploited (including all the possible means of transmissions).
Also get tested for other STDs.
Hope this helps