So we have been telling people as the situation presents itself.
We told our immediate families shortly after we knew. By the end of January, most of our extended family knew. With our friends, we were telling friends as we saw them or as it came up. Most people knew we weren't waiting long after getting married to start our family.
Well, today is my birthday. I had not said anything on facebook or made any sort of announcement about it. Several people made comments on my wall about hoping I don't have bad nausea today or drinking sparkling apple cider. So I figured why not change my status and put it out there instead of fielding a bunch of "are you pregnant?" questions. Now people who already knew are saying exactly that. I am getting comments to the effect of "already knew, but congrats."
Um, WTF. Thank you for making me look like an ass to people who I wasn't able to tell before this. I deleted their comments and sent them a message about why.