She welcomed son Josey this past September, but has already lost all 60 pounds of baby weight.
And as the cover girl for May's Fit Pregnancy and Baby, Naya Rivera revealed the secrets behind her big weight loss, even crediting Glee since it helped her to stay fit prior to getting pregnant.
'Muscle memory luckily kicked in,' the 29-year-old recalled, thinking of her time on Glee, as she fought through her more difficult workouts with her trainer.
Naya Rivera's surprise marriage to Ryan Dorsey has fallen apart ... according to new court docs.
Naya filed for divorce last week, and -- according to her lawyer -- she's asking for primary physical custody of their 1-year-old son, Josey, with visitation rights for Ryan. The couple was married for a little more than 2 years.
You'll recall ... Big Sean said he broke off his engagement to the former "Glee" star back in the spring of 2014 after accusing her of being too controlling. Just a few months later, Naya was married to her longtime actor pal, Ryan -- seemingly out of nowhere.
Somewhere out there ... Big Sean is smiling. Probably.