Chrissy Teigen is getting used to life as a mom of three after welcoming daughter Esti with husband John Legend in January. And before the couple introduced their baby girl to the world, the 37-year-old model took steps to protect her newborn through her partnership with Cord Blood Registry.«I have a history of being interested in wellness and healthy families, and when I learned about the science behind newborn stem cells from cord blood and tissue, I knew it was the right choice for my family.… Banking newborn stem cell and tissue with CBR allows my family to take advantage of future discoveries that could benefit their health. ... I banked the cord blood for my two older children, and I knew I wanted to do it for Esti,» the author tells ET. «Saving newborn stem cells is a great option to protect your family’s future health, but many times, people aren’t aware that this is an option.