Right before Olive turned three months old I was talking on the phone with my mom and I asked her, "Is it too late to send a birth announcement for Olive?" She didn't think so, and said, "Anyone who cares to see it doesn't care how late it comes!" She also joked that I should do two pictures-- a "then and now." That got the wheels turning in my head and I ended up doing a "highlights of my first three months" themed announcement. It works well as a belated birth announcement and everyone liked seeing pictures of her, too!