Wear my dress now or later

We decided to get married in church with just our parents and siblings present in December and have postponed our reception to March (still not open in LA County).
Originally I planned to wear a simple dress in December and save my dress (still not altered) for our party since we may do an outdoor ceremony before the reception so others can attend later.
Now I'm having a tough time thinking what if I never get a chance to wear my dress? Am I going to "save" it for a party that may never get to happen? I love it so much I want to wear it to something that will be all day with photos and all. Our church ceremony will be small and short and I wouldn't want to wear it twice/for both events. It was very expensive and it's my dream dress. But I also have less than 2 months to get it altered.
Should I wear it for the elopement now? (Not hiring photographer, only doing video)Or save it for the bigger celebration? (Risk not wearing it at all if things don't go back to normal)