Michelle Heaton has announced that she is expecting her second child with husband Hugh Hanley.

She described the pregnancy as a "shock", adding that it is a "very exciting time" for her family.

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The singer - who gave birth to her daughter Faith in January 2012 - underwent a double mastectomy in November last year.

She made the decision to have the surgery after discovering that she has a mutation of the BRCA2 gene, which carries an 80% chance of developing cancer.

The 34-year-old announced the news on Twitter, posting: "I am thrilled to announce I am @OK_Magazine new health & fitness columnist .. & guess what? I get to blog about my pregnancy .. ; ) ....

"..yup, myself and @hughhanley are thrilled we are expecting a mini Michelle or Hugh. Check out @OK_Magazine to find out why it was a shock..

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"..this is a very exciting time for us after everything that's happened.. Thank you as always for your love & support! Whoop whoop! Xxxx."

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