hi, I had sex without protection with a HIV positive people for 5h.he did not take any treatment.i am bottom.and i found much blood on the bed sheet.and i believe that's mine.13 hours later,i took pep treatment:Zidovudine and Lamivudine Tablets ,Lopinavir/RitonavirOral Solution .i want to know ,will it work?how much percent will i avoid being infected?thank you all!