Related: Melissa Joan Hart Confirms Pregnancy
"Some of my girlfriends took me out for a little birthday brunch. I couldn't help but get a lil fancy," tweeted Melissa, who turned 36 on April 18.
In the photo accompanying the above caption, the actress cradles her new baby bump while rocking a tiara.
Melissa announced the news of her pregnancy the day before her birthday, tweeting, "Happy Birthday to me! And baby makes 3!"