Jamie Lynn Spears feels "complete" since welcoming her second child into the world this week.

Jamie Lynn Spears

Jamie Lynn Spears

The 27-year-old actress and singer - who already has nine-year-old daughter Maddie with her former partner Casey Aldridge - gave birth to her first child with husband Jamie Watson on Wednesday (11.04.18), and has said she couldn't be happier to be a mother for the second time.

Jamie Lynn - who named her newborn daughter Ivey Joan Watson - told People magazine: "Maddie was the first one to meet her after she was born. [She] was so peaceful the moment her sister held her. I have never felt more complete in my life. It's pure joy watching my girls fall in love."

The former 'Zoey 101' star announced Ivey's birth in a statement released on Thursday (12.04.18), in which she revealed her tot's middle moniker was picked in memory of Jamie Lynn's late Aunt Sandra.

She said: "We are beyond excited to welcome this beautiful baby girl to our family! Her middle name, Joan, is to honour my Aunt Sandra, who passed away 10 years ago from ovarian cancer. She was the most graceful woman I've ever known."

Ivey was born in Covington, Louisiana, on Wednesday at just after 10am, and weighed in at 7 lbs, 8 oz, with a length of just over 19 inches.

The tot's birth comes after Jamie Lynn announced the news of her pregnancy on social media back in December last year, with a picture of herself alongside her husband and Maddie.

She wrote at the time: "Looks like we are starting off 2018 with another big milestone...sooo happy to announce that Maddie is FINALLY going to be a big sister (sic)."

Jamie's pregnancy came after a difficult year for the family, which was almost struck by tragedy when Maddie was involved in an ATV accident.

Her post continued: "2017 was filled with some of the biggest challenges of my life, as well as some of the biggest blessings. (sic)"

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