Jamie Lynn Spears
has postponed her wedding.
The 17-year-old star was set to tie the knot with her 18-year-old fiance Casey Aldridge - with who she has nine-month-old daughter Maddie - but has decided she is happy with their relationship
as it is for now.
A source told America's OK! magazine: "The wedding is off. They are still in love, living together and very happy, but they have no plans to get married. Jamie Lynn has everything she wants and feels no need for a ring and piece of paper."
Another insider explained: "She and Casey have weathered a lot in their young relationship already and don't need the pressure of making wedding plans."
Jamie Lynn - Britney Spears' younger sister - announced she was pregnant when she was 16.
Her relationship with Casey has been turbulent.
Last August, it was claimed Casey had sex
with Kelli Dawson until Jamie Lynn was six months pregnant, although he vehemently denied the reports.
The 'Zoey 101' actress has adapted well to motherhood, and has decided not to return to acting so she can spend more time with Maddie.
A source said: "She has told friends and family she's never coming back to Hollywood. She feels that part of her life is over. Since she's had Maddie, her life has changed completely.
"Jamie Lynn knows she needs to make a living when she grows older, so she's already discussing her career options with advisers. She wants Maddie to grow up in comfort."