I am a physician myself, but don't plan to use Dr in our announcement, only because that's my preference.
However, I will play devil's advocate a bit though and say that I've been to many weddings where male physicians were married, and they introduced the couple as "Dr. and Mrs. Jones".
Basically, I'm saying it's your choice:) You should be proud of your accomplishments! And you're not diminishing them in anyway by not being announced as a Dr. ...you're just being you. How does your FI feel?