Male boss told me this morning that colleague has miscarried - no one knew she was pregnant so there was no reason to tell anyone in the office.
I assume as we are the only females on the team it was a misguided attempt to provide her with some support when she returns to work 
I've now just heard him tell another colleague about it in the middle of the open plan office!
It's ok though as "he's only telling people as and when they need to know" -(I overheard him say this)
I know I'm not being unreasonable to think that no one NEEDS to know and he could have just said she's been taken ill and he doesn't know when she'll be back so can someone else pick up her work! 4 people have now been deemed need to know and at least half a dozen may have overheard the conversation like I did!
I now don't know if I should send a text to say boss told me and offer condolences or pretend I don't know and wait for her to tell me if she decides to - which I doubt as she's a very private person.
I'm also wondering if I should make a complaint to HR, but 1. He'll know who made it and 2. It's not really my complaint to make?
I wouldn't want the whole bloody office knowing especially an office full of men!
So more of a WWYD than AIBU....