The only sure way to know your status is to get an HIV test. You can buy an HIV home test kit at a pharmacy, go see your regular medical provider, or drop into a local HIV testing site: https://gettested.cdc.gov/ HIV antibody tests take 3-6 weeks to turn positive after someone gets infected with HIV. If the sex without a condom was less than 3-6 weeks ago, you can talk to your provider about getting an HIV RNA test instead of an HIV antibody test. The HIV RNA test becomes positive 10-14 days after someone gets infected with HIV. If the sex without a condom was within the last 3 days, you should talk to a provider right away to see if you should start PEP. Your risk of getting HIV depends on your gender and sexual practices. Some sexual practices are much lower risk for getting HIV than others. You can talk to your provider or call the City Clinic PEP line if you have questions about whether you need PEP.