We've told our immediate families, a few best friends, and I've told some aunts and cousins that I'm very close with, and both of our bosses. My mom spilled the beans to another aunt who I didn't want to tell yet and that aunt called to tell another aunt. Luckily, it was a close aunt that I had already told, but there's no telling who else she has told now. My mom just couldn't contain herself because my aunt was bragging about my little 20-something, unmarried, still living at home cousin being due two weeks after me (she's already to announced to the public via Facebook of course). We are thinking of making it public knowledge around 16 weeks. I may just do a social media announcement with some chalkboard art and the little pair of red sneakers I impulsively bought during my first pregnancy last year. I don't think I'll really announce at work, I'll just let ppl realize when it's obvious.
I'm assuming your at you're appt picking up Ace right now! Sending luck and hugs your way!