Jamie Lynn Spears is a mom now

Jamie Lynn Spears gave birth to a baby girl Thursday morning at a south Mississippi hospital, according to a person close to the Spears family.

The 17-year-old was the star of Nickelodeon’s “Zoey 101” and is the younger sister of pop star Britney Spears. The baby’s father is Casey Aldridge, a pipe-layer from Liberty, Miss. The couple is not married but announced an engagement several months ago.

The younger Spears lives near Liberty with Aldridge, 19, and has been seen around the small south Mississippi town often as her pregnancy became more apparent. Her family owns a home across the state line in Kentwood, La.