The 48-year-old model and actress set the record straight on Twitter, telling her followers "PS contrary to ludicrous reports, family, friends & followers, I am certainly not trying to have a baby.....mind boggling."
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Though the couple might not have plans to extend their families, one thing's certain – they seem to be getting on extremely well after their apparent "rocky patch".
Shane responded to Elizabeth's tweet. "I thought we were going to try for triplets ??? Hahaha Good luck today shooting 'The Royals' Xxx," he said – referring to the pilot for a new American TV show she is currently filming in London.
The lighthearted banter came after the Australian cricketer had sent Elizabeth a supportive message saying how proud he was of her of her charity work supporting breast cancer research.
The couple pictured with Damien - Elizabeth's son from her relationship with millionaire Steve Bing
"Well done on all the wonderful work u do. Hope the week was another huge success. Very proud of you angel," he wrote.
Elizabeth was last week in Canada, where she spoke at an Estee Lauder boutique which had been decked out with pink ribbons and flowers to signify Breast Cancer Awareness Month.
She responded to Shane with a message of thanks, and a picture of herself with her man at a breast cancer awareness event last year, telling him he had been "missed by all".