In September 2022 she scored the winning goal for Northern Ireland when they played Luxembourg. McKenna said that she advised any other Northern Irish players to take a spell with a mainland British team if offered.[3] McKenna appeared in every match for Lewes in the 2022–2023 season. She left the club at the end of that season[4] and joined Charlton Athletic on a one-year contract.[5] Upon the expiry of her contract she left Charlton Athletic and joined Birmingham City on a two-year deal.[6]