no. unless the person you had unprotected sex with actually had hepatitis you are not at risk. exposure does not equal contagiousness and you cannot catch a disease from a person simply because they were vaccinated.
should i be concerned that a women w/ hep b vaccine was exposed to hep a thru food service and had sex with her. a food service worker was diagnosed with hep a a woman ate there but has the hep b vaccine a male had sex with her should he be concerned?