I was giving anal sex with a "high risk" person and my condom broke. I realized it felt different and pulled out within 30 seconds of the condom break. I urinated within 2 minutes and washed up completely. About 4 hours later I was given Zilarvir (Combid PEP drug.) I've been taking twice a day for the past 4 days now and don't like the dizziness and nausea from taking this drug. I would like to stop taking the drug but am unsure if HIV virus could have spread through my penis head into my urethra in time following the condom break. Could I have been infected in that short amount of time also given that I urinated afterwards and am now on PEP??? Should I stay on the PEP drug until after 30 days to be safe? Thank you all in advance!