Tacky to send wedding announcement ahead of the wedding?

I know that the best practice is to send a wedding announcement after the wedding, if you choose to send one at all. But I’m having a unique problem with my family.


We’re eloping out of the country with just our immediate families (is that really eloping?) and our extended families will not be invited. To be more specific, we are already legally married (extended family not aware) and we’re doing our religious ceremony abroad. We planned this on short notice, with just 4 months before the ceremony.
I have a HUGE family accustomed to large traditional weddings with 500+ guests. News has started to trickle down about our plans, and my poor mom is fielding tons of phone calls from confused family members asking for wedding details, where is their invitation, why have we not sent save the dates, etc.
I am considering sending out a marriage announcement BEFORE the ceremony to communicate that 1) we got married last month, and 2) our religious ceremony will follow with just our immediate families

Considering saying something along the lines of “we are thrilled to share with you that we tied the knot last month…./ our catholic ceremony will follow in X location surrounded by our immediate families. You hold a special place in our hearts and we hope to celebrate with you in the bear future.”
Is that incredibly tacky? Knowing my family, they would be hurt to find out via social media or word of mouth. Opinions?