hi I recently had sex with a street worker 7 days ago , the condom broke , I visited a sexual health clinic a day after and they gave me vaccine to protect me , however I know this doesn't protect me from my recent exposure . I am from the uk and I'm worried sick about contracting hep b from this exposure . can anyone give me advice ? and iv read that there is another injection by killing hep b within 14 day period , is this true?