NEW YORK—Weeks after giving birth to daughter Maddie Briann, Jamie Lynn Spears is showing off the newborn, sharing memories of a “perfect” delivery and longing to be a Southern soccer mom.

Spears and fiance Casey Aldridge welcomed Maddie at a hospital in McComb, Miss., on June 19. The younger sister of Britney Spears poses with her on the cover of OK! magazine—as expected, given the fact that Spears announced her pregnancy through an article in OK! and reportedly was to receive a large payday for exclusive pictures of the baby.

The photos were taken at the pair’s Mississippi home. The magazine does not comment on the terms of its deals with celebrities.

In an interview with OK!, the 17-year-old Jamie Lynn said she had been nervous about giving birth “but it all fell into place. I was right on schedule. I had a perfect pregnancy and a perfect delivery. I was very blessed.”

Jamie Lynn said watching Aldridge, a pipe-layer from Liberty, Miss., hold Maddie for the first time “was the coolest thing. ... He was so happy, and that made me the happiest person alive.”

Jamie Lynn’s immediate family—including big sister Britney—were there for the birth, though Aldridge was the only one allowed in the delivery room.

“It was such a big day,” she said. “And being able to have your sister there, your whole family there, meant a lot. Everybody flew in to celebrate.”

“I would love being the soccer mom,” she said. “They don’t have soccer down here, but I would love being the softball mom driving the kids around.”