What's The Office Decorum? Who Do You Tell First?

I told my immediate superior. Then he can make arrangements. Afterwards if you feel comfy, you can tell your colleagues. I told my superior to keep it low till the 3rd month

I told my boss and colleagues during my birthday lunch. (I work in a small company) I was going in 2nd trimester in abt 2 days at that point of time. 😊

I only tell my supervisor and my own team (who will be impacted ). The rest no

Immediate superior and HR dept

Immediate supervisor :)

Bosses first