Announcing without actually announcing

I’m 5 weeks pregnant today with baby #3 & we’ll be “announcing” on Thanksgiving. I wanted to do something kinda funny/witty this time around for our announcement. I have a friend who makes shirts & she’s making me something similar to this:

Just gonna go to Thanksgiving dinner & see how many people pay attention/read the shirt. Also gonna be taking a pic wearing it & posting it to FB without making it obvious that it’s a pregnancy announcement 🤣

Has anyone done something similar?? How did/are you announcing??