Michelle, 34, confirmed the exciting news on Twitter today (19 August) after being sent several messages of congratulations.
The Liberty X star said: "Myself and @hughhanley are thrilled, we are expecting a mini Michelle or Hugh.
"Thank u for your well wishes. Yes, Faith is gonna be an amazing big sister. She's already kissing my stomach. Have a great day all! X"
The couple's daughter Faith is 18 months old and their next child will be another welcome addition for them, especially after a tough year.
Last year, Michelle revealed how she planned to have a double mastectomy and her ovaries removed after discovering she had the BRACA2 faulty gene, which can cause cancer.
In November, Michelle had both breasts removed, however she said that she would wait and try for another baby before having surgery on her ovaries.
In today's message to fans, she added: "This is a very exciting time for us after everything that's happened.. Thank you as always for your love & support! Whoop whoop! Xxxx"
See who else is expecting in our celebrity pregnancy gallery:
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