Shepherd attended
Brigham Young University, where she played as a midfielder for the
BYU Cougars from 2019 to 2023. BYU reached the
NCAA Division I tournament in each of the five seasons she was on the team, most notably making the quarter-finals or beyond on three occasions of the program's five total appearances as of 2023. Shepherd's first quarter-final appearance came in her freshman season, where BYU lost to eventual national champions
Stanford Cardinal 5–1. The
2021 season was the best yet from BYU, with the school reaching the College Cup semi-finals for the first time ever, where they beat the
Santa Clara Broncos on penalties after a 0–0 draw to reach their first ever College Cup final. However, BYU would fall short of winning the championship, losing to the
Florida State Seminoles on penalty kicks after another 0–0 draw, Shepherd missing one of the shootout penalty kicks. In Shepherd's final season at BYU, the team reached the College Cup semi-finals for a second time in three seasons, but fell short once again against Stanford in a 2–0 loss. In five years, she played in a program record 108 games, scoring 14 times and registering 21 assists. ==Club career==