Jessica Simpson is going to be a mother. The singer, designer and actress confirmed she was expecting her first child on Monday. Simpson Tweeted the announcement along with a photo of herself in a Halloween costume. “It’s True! I am going to be a mummy!” Simpson wrote.

The picture featured Simpson, who’s engaged to former football player Eric Johnson, in a sequined mummy outfit cradling her well-defined baby bump. No word on when the baby is due, but a source close to the couple told Access Hollywood Simpson is “feeling great,” and Johnson is “incredibly excited!”

Congratulations Jessica and Eric from KHL!

For more on Jessica Simpson visit her website at www.jessicasimpson.com. You can also follow her on Twitter at www.twitter.com/JessicaSimpson