The Glee star gave birth to son Elijah and confirmed the news to Us Weekly.
This is her first time being a mother with boyfriend Taylor Hubbell. She told Fitness magazine two years ago: "I want to marry Taylor and have kids with him. I love acting, but if it affects my relationship, then I won't continue."
Though Heather will not be returning for Glee's fifth season, you probably know her as Brittany Pierce.
Here's Heather performing 'Slave 4 U' in the show, below:
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