Stewart was born in Denver, Colorado to a Canadian father and an Italian mother (from Naples).[3][4] She was raised in Denver and The Pas, Manitoba, her father's homeland.[4] She comes from a family of sport. Her father and brother both played ice hockey while her sister is also a soccer player.[5] She was raised in Abbotsford, British Columbia.
Youth career
Stewart attended Vanderbilt University her freshman year and scored 3 goals in 18 games for the Commodores.[6] She then transferred to UCLA, and after sitting out a year because of national team commitments, scored 2 goals in 66 games for the Bruins.[6][7]
Stewart has represented Canada on the U-20 youth as well as participating in the 2011 FIFA Women's World Cup. When the Canadian team that competed in the 2012 Olympics defeated France 1–0 on August 9, 2012 in the bronze medal match, Stewart was awarded a medal since she had played in four of the matches for Canada.[13]