Last night I had sex with a street sex worker. I had on a condom and was having sex until it popped then I immediately withdrew my penis from her vagina. I didn't think much of it since I wasn't exposed for more than 2-3 seconds but today I found the condom in my car and dried blood on it on the shaft area, I'm worried that she could have HIV and her being on her period could have heightened the risk. I'm going to take a test when the time is right but I want a risk assessment for this exposure, should i be really worried or the chances aren't strong enough that I could have been infected from this brief exposure. Any help is appreciated.