Since 2007 Potter has worked as a BBC television football pundit.
While attending The Manor School, Potter began her career at Chesterfield centre of excellence. She was with Sheffield Wednesday in 2001–2002, before signing for Birmingham City.
By 2004 she was playing for Arsenal then signed for Charlton Athletic in summer 2005. When Charlton ditched their ladies team in 2007, Potter moved on to Everton, then returned to Birmingham City in January 2009.
With Birmingham not playing until the FA Women's Super League in March 2011, Potter signed a short term deal with Leicester City in summer 2010.
In May 2013 Potter's excellent form with Birmingham, playing in a central midfield role, led to manager David Parker demanding that she be given another chance at international level. In June 2016, Potter and team-mate Jade Moore both bought out the last six months of their Birmingham City contracts and left the club as free agents. Despite the players' long service, a statement on Birmingham City Ladies' website called the development "an excellent deal for the club".
Later that month Potter and Moore joined Notts County on short term deals until the end of the 2016 FA WSL season. Less than a year later, however, the club folded before the 2017 FA WSL Spring Series. Becoming a free agent, Potter joined Reading along with teammates Jade Moore and Kirsty Linnett in May 2017.
Potter played for England at U16 level. She helped England U19s qualify for the 2003 European Championship finals, scoring twice in 90 seconds against Bulgaria on 4 October 2002.
She was called up to the senior team for the first time for a friendly against Nigeria in April 2004, while playing for Arsenal. But she had to pull out due to a back injury. In September 2004 she featured as a substitute in two friendlies against the Netherlands.
Potter narrowly missed out on selection for UEFA Women's Euro 2005, but was recalled straight after the tournament following impressive performances for the U21 team. She scored against Hungary during England's record 13–0 win in October 2005. Potter withdrew from the World Cup qualifying play-off against France in September 2006 with damaged ankle ligaments. However, she returned to the team for the 1–0 friendly win over Scotland in March 2007.
After a seven-year absence from the England team, Potter was recalled by coach Mark Sampson for a friendly with Sweden in August 2014. She scored her second goal for England in September 2014, during a 10–0 win in Montenegro. In May 2015, Sampson named Potter in his final squad for the 2015 FIFA Women's World Cup, where the team finished a historic third. Potter was named to her second consecutive major tournament finals squad when Sampson selected her to his UEFA Women's Euro 2017 squad in April 2017.Scores and results list England's goal tally first.
After missing out on a place in the FIFA Women's World Cup 2007 squad, Potter worked for the BBC as an expert analyst in their tournament coverage. She continued to work for the BBC on their women's football coverage.
Potter also worked as a Football Association skills coach, based in Sheffield. In 2015 Potter was employed by team-mate Jade Moore, who had her own sports therapy business.