Melissa Joan Hart is expecting her third child.
The former Sabrina the Teenage Witch star - who turns 36 today - announced the news on twitter by posting a picture of her visibly pregnant self along with sons Mason, six, Braydon, four, and husband Mark Wilkerson.
She tweeted: "(Early) Happy Birthday to me! And baby makes 3!"
A source told Life & Style magazine the Melissa and Joey star could not be happier about the latest addition to the clan.
The insider said: "She's really excited and is starting to show. You can barely tell, but there's a teeny-tiny little bump."