HI Doctor,yesterday A Transgender Prostitute Sucked My Cock For 10

HI doctor,yesterday a transgender prostitute sucked my cock for 10 to 15 seconds without condom.she is seemed to be a tobacco user,at that time i needed pleasure but after that 15 seconds i was really worried about that incident.i don't know whether she is HIV positive.i did'nt cum in her mouth as well.she sucked for a while and removed my cock from her mouth and did blowjob after that only i cummed.we only did this oral sex above which nothing happened.i have to know is their any chance of infected with hiv.i'm really upset and i can't be happy.I need your answer as soon as possible .