[3] Cain left Sheffield after they were relegated to the National League for failing to meet the new Championship licensing criteria.

[13] In April 2014, Cain was named in Wales squad for an under-16 UEFA development tournament in Northern Ireland.

[16][17] In 2017, Cain was called into the under-19 squad, but would not make an appearance until 2018 to compete in the UEFA Women's U-19 Championship qualifiers scoring twice in three starts.

[19] Cain made her Wales national team debut against Estonia on 26 October 2021.

[20] Cain was part of the Wales squad that finished as runners-up in the 2023 Pinatar Cup.