Vaginal fluid and fingering

I spend three hours with a prostitute the other day. I initially did quite a lot of foreplay and fingered her for a while until she came. I remembered that she was very wet. I then had sex with a condom and did not come. Later on we continued to kiss and play without penetration. I went to bed without worries.  When I woke up in the morning I remembered that towards the end of the session I inserted my finger in my anus not deep (one inch) and for a short period of time (2 seconds). I also checked my bed and found two spots, which showed that she must have had a lot of vaginal discharge during sex.  I also found spots on my teeshirt, and some minor small yellowish stains. The next day my finger had some dry yellow material like small crumbs stuck between the nail and the finger.  I am not worried about havig sex as I used a condom but I am concerned about fingering myself. I do not remember whether my finger was wet when I inserted in my anus.  I think it may have been dried but I am not sure.  I read a lot lately in websites about AIDS and would like your advice as to whether my assessment of possible risk is correct.  For transmission to take place:
(A) She must be infected with HIV
(B) That the finger with infected fluid was inserted soon after fingering her, i.e., finger wet with fluid ( I understand that the virus dies almost immediately after the fluid dries up)
(C) In the affirmative sufficient liquid (cervical fluid) should have been on my finger (i understand that vaginal fluid in clitoris is not as infectious) to lead to transmission.

Please also let me know the origin of the yellow discharge during sex
Thank you very much

[Teak]

You were never at risk from fingering.