Ellison has three children. On 4 February 2010 she gave birth to her first child, a baby boy by caesarean section at Liverpool Women's Hospital. Her second pregnancy came to her as a surprise. Ellison said: "I didn't even know I was pregnant until four weeks ago, and I'm almost five months gone now. I can't believe I'm having another baby in July. It's been a massive shock." On 9 July 2013 she gave to birth to her second son. On 26 September 2014, Ellison gave birth to her third child, another son.