Recently had a foursome with three other guys they all performed oral on me and gave me rim jobs they were having unprotected sex and I thought it was kind of weird so I then put a condom on myself. The one guy who invited me wanted to have sex so I attempted to put my penis into him and one of the other guys but it didn't work out. Right after is when they decided to disclose their hiv staus which was positive, they were all positive and claim to be "undetectable".. I'm not sure if I had any cuts or abrasions plus I had figured one of the guys. I freaked out and rushed to the nearest emergency room and I was put on pep within almost 2 hours after (truvada and isentress) but I read pep is not 100% and not really tested for non occupational exposures ....am I at high risk?????