When is the K1 visa actually given to my Fiancee?
This will depend on the individual consulate. Some will issue the visa immediately, but many will not. The visa is given along with a sealed envelope of documents, which must be given to the USCIS officer when entering the U.S. The visa must be used within 6 months from the date of the initial interview. The Fiancee is allowed to enter the U.S. once with the visa, with the purpose of getting married.