I had oral sex with an hepatitis b weakly positive girl last night but within 17 hours i have taken vaccine but i have not taken immunoglobulin with it. So will vaccine work alone in preventing the transmission of the virus ?

Well done that you had the hepatitis B vaccine immediately, but it’s effectiveness is different in immediate exposure situations and get immunoglobulin with such a vaccination especially when this was 1 st dose. As soon as possible, you should see a healthcare provider who specializes in infectious diseases or has expertise in hepatology. They can evaluate your risk, decide whether additional post-exposure prophylaxis such as hepatitis B immunoglobulin is necessary and give you further guidance on testing and follow up.