Yes, Shay does become a Pretty.
In the narrative of the Uglies movie, Shay undergoes the transformation procedure that turns individuals into the aesthetically "perfect" inhabitants known as Pretties. This key development in the story confirms her transition from an Ugly to a Pretty. Her transformation is a significant plot point that aligns her with the city's standard for beauty, a process that also saw others, like Peris, become an even more advanced type of Pretty, referred to as a "Special."
This process is a central theme within the world of Uglies, highlighting the societal pressures and the dramatic physical and often psychological changes endured by those who undergo the transformation.
