What are the chances of me having hiv if i have unprotected with my girlfriend that has hiv?

ive had with her around about ten times, seven times of which it was with out a condom an two times ly i also shaved my and had a slight rash at the time , i only found out she is hiv positive two das ago ... what should i do ??? im not a high risk person but she never told me she has hiv i thought she only had blood cancer