He has played 18 games and scored two goals for the Denmark under-21 national team, and was named 2000 Danish Under-17 Player of the Year.
Bergvold started playing football with small clubs Rødovre Boldklub and Boldklubben Avarta.
He moved to Kjøbenhavns Boldklub (KB), the reserve team of FC Copenhagen of the top-flight Danish Superliga.
He made his senior debut for Copenhagen in December 2002, and was a member of the squad which won the 2002–03 Superliga championship.
Bergvold played 22 of Copenhagen's 33 games in the 2005–06 Superliga season, which the club went on to win, and he was selected to represent the Danish under-21 national team at the 2006 European Under-21 Championship in May 2006.