The mother-of-three announced the arrival of her son in April as she shared a photo of her cradling the newborn and gushed about the new addition to her family. 'Kenna, Welcome to the world baby boy! Wow, What an adventure we've been on since the day he was conceived!', she wrote. 'I thank God everyday for blessing me with his super active energy (wonder where he gets it from?) and now to meet our healthy baby boy?! Thankful. Blessed.' Cool kid: Christina also posted a snap of her eldest child, eleven-year-old daughter Violet, looking typically cool in a pair of chunky biker boots as she posed for her mum