The 17 year old Tv Star is soon to tie the knot at her sister's estate. Her Boyfriend, Casey Aldridge, the father of her baby will be deciding the wedding date and time. The possible bridesmaid will be her superstar sister, Britney Spears.She wouldn't want to be mommy first. She oblige to be a bride at the start.The source added to America’s OK! magazine: "Jamie Lynn and Casey are committed to each other and anxious to be the best parents they can possibly be, and also the best husband and...