Belgium Wullaert's first team was
SV Zulte Waregem in the
Belgian First Division, where she played from 2008 to 2012. For the
2012–13 season, when the
BeNe League, a new joint league between Belgium and the Netherlands, was created, she moved to
RSC Anderlecht, with which she won the
Belgian Cup. She left after one year and signed for
Standard Liège, scoring 16 league goals during the
2013–14 season and winning the Belgian Cup again. In
2014–15, her second season playing for Standard, she won the BeNe League top scorer award with 18 goals, helping the club win the title.
Wolfsburg In May 2015, Wullaert moved to
VfL Wolfsburg. She spent three seasons with the club, winning two
Bundesliga and three
DFB-Pokal titles. She also appeared in two
Champions League finals, both as a substitute.
Manchester City In June 2018, Wullaert signed for English
FA WSL club
Manchester City. In her first season with the club, Wullaert won the
FA Cup and
League Cup double, finishing runner-up in the league. Following two seasons with the club, Wullaert announced she had declined a new contract and would be leaving.
Anderlecht In 2020, Wullaert moved back to Belgium to be closer to her family and boyfriend. She signed a contract with Anderlecht that made her the only fully professional female footballer in Belgium at the time. She scored more than 30 goals in each of her two seasons with Anderlecht, leading the Women's Super League in scoring and helping Anderlecht win two league titles and the Belgian Cup in 2022.
Fortuna Sittard After two years in her native Belgium, Wullaert agreed terms with newcomers to the Dutch
Eredivisie Fortuna Sittard, situated just across the border from Belgium. In March 2024, she scored a league record of 7 goals in an 8–0 win over Telstar.'''''' With 26 goals, Wullaert became top scorer of the
2023–24 Eredivisie. She also won the league's .
Inter Milan Women On 7 June 2024, it was announced that Wullaert would join the Inter Milan women's team. ==International career==