Kimberley Walsh couldn’t tell Sarah Harding about her third pregnancy because she didn’t want to cause her more “pain” amid her battle with cancer. The 40-year-old beauty found out she and husband Justin Scott were expecting another baby in September 2020, just a month after her former Girls Aloud bandmate – who died in September 2021 aged 39 – revealed she was battling advanced breast cancer. Though she knew it was “weird” to hide the happy news from her friend, she felt it for the best at the time because Sarah knew her chemotherapy treatment would stop her starting a family of her own natur…