I think you should get your biometric appointment letter in a week or 2, as soon as you get the letter take the letter and your itinerary go to the application support center and ask them to do a walk-in appointment. Once you get through the biometrics you can travel. When your husband receives your interview/test letter, come back for the interview/test. Once you pass it, explain that you are working abroad and if they can accommodate you for a quick oath (some people got oath same day, some within a week).
Good luck!