Oh I’m sorry to hear that. It is good to be prepared, however, worrying about something that may or may not happen doesn’t do anyone any good. Just in case it may be a good time to consider all your options, employment, living expenses, and financial obligations. It is good to do this on occasion anyway.
Keep up with training and education in chosen field and consider other forms of employment for broader job market.
It’s not the end of the world, whatever happens you and your fiancé will get through this.