To announce or not to announce?? Help!

Nina
Okay So my DH is in the Navy. He just got back from 4 months on and off a boat preparing for his deployment in November. We live far from both our families. We're in FL. His family VA. Mine in NY. He has not seen his family
Since our wedding a year ago.
We are going to visit his family This weekend in VA. I wanted to wait to tell MY family when I see them at Thanksgiving. He will be gone at that point. I have a really cute idea for an announcement. However, I would like to tell his family while we're both together. I think it would Be more meaningful coming from him.  But my dilemma is can I tell one family  and not the other? Do you think they'll say anything? I'm so torn. Help me. Lol