Your Immigration Expert
Visa To Travel To The USA
It does not matter what Passport your husband holds, your visa is granted based on your nationality. As a Bulgarian national you will require a tourist visa or Non-Immigrant visa prior to entering the USA. Even though Bulgaria is part of the E.U it is not part of the visa waiver programme. here is a link to the page on the US embassy website which will explain everything.
If you are resident in the UK or another country you may apply to your local US embassy or visa consulate office.
Enjoy your trip.