How to announce after your sibling just did!

I’m not positive just yet but my husband and I are actively TTC and my period is due 12/31. Christmas morning my older brother and his wife just announced their surprise pregnancy (they live overseas). When we CAN successfully confirm our pregnancy (whether that be this cycle or in the near future), what’s the best way to announce this to our family? All of the “promoted to grandma/grandpa” ideas just went out the window 😅 I love the idea of them having 2 grand babies on the way at the same time so I’d like to incorporate that into how we announce ☺️