The former popstar and husband, Hugh Hanley, welcomed a little girl, who they have named Faith Michelle.
Hugh revealed the news on his Twitter page with the message:
"My beautiful wife @wonderwomanshel gave birth to our gorgeous baby girl 'Faith Michelle Hanley' yesterday morning. Circle of life is amazing."
New mum Michelle then re-tweeted the message to her 60,000 followers.
The couple have already chosen Michelle's close friend Katie Price to be little Faith's godmother. The model tweeted her excitement about being asked after Michelle's baby shower last month:
"'I'm sooooo happy and over the moon that @wonderwomanshel and @hughhanley have asked me to be a godmother to there (sic) baby. Woo forever friends."
Congratulations Michelle and Hugh!