In 2021, Ngatupuna played for the Panthers in the QRL under-19 competition and for Valkyries in the QRL Women's Premiership.[3] In June 2021, she represented Queensland under-19.[4]
In June 2021, Ngatupuna made her Super W debut for the Queensland Reds in Round 1 of the 2021 Super W season in a 47–26 loss vs the NSW Waratahs.[5]
In August 2021, she signed with the Gold Coast Titans.[6]
In Round 2 of the delayed 2021 NRL Women's season, Ngatupuna made her NRLW debut against the Sydney Roosters.[7][8] Following the NRLW season, Ngatupuna played for the North Queensland Gold Stars in the QRL Women's Premiership, starting at prop in their Grand Final win over the Central Queensland Capras.[9] In June, she represented Queensland under-19 for the second time.[10]
Ngatupuna returned to the Titans for the 2022 NRL Women's season, playing just one game.[11]
In November, Ngatupuna represented the Cook Islands at the Women's World Cup, playing three games and scoring a try in their 26–18 win over France.[12]
Ngatupuna began the 2023 season playing for the Souths Logan Magpies in the QRL Women's Premiership.[13]
On 10 May, she signed a two-year contract with the North Queensland Cowboys.[14]
In Round 1 of the 2023 NRL Women's season, she made her debut for the Cowboys, coming off the bench in a 16–6 loss to the Gold Coast Titans.[15] In Round 3, she scored her first NRLW try in a 40–12 loss to the Brisbane Broncos.[16]
In 2024, Ngatupuna returned to rugby union, joining the Queensland Reds in the Super W.[17] In October, Ngatupuna was selected to represent the Cook Islands in the 2024 Rugby League Pacific Championships.[18]