I bought my daughter a "Big Sister" t-shirt, wrapped it, and had her open it this morning. After telling her what it meant, she jumped up and said "OMYGOSH! I'm so excited!" and gave me a big hug.
That's of course when I started to cry. Cause I cry over EVERYTHING, ugh. lol.. Anyway, this will be the concept of my pregnancy announcement- except once the EDD gets confirmed, she'll be holding a chalkboard with it on it