How would one artfully navigate the fertility announcement post?

1-to-1, or 1-to-many?

First of all, I'm not entirely sure what the point of the fertility/birth announcement post is, honestly. I have lots of friends who have had kids by now. In some cases, I knew exactly at 12 weeks, or whenever the couple felt like announcing. In some cases, I knew via the hospital photo. In a few cases, I knew of the child when I saw them in a picture a…