The former politician's eldest daughter is the MTV show's newest addition.
Dakota Meyer had filed for divorce in February, citing “discord or conflict of personalities.”
The couple has reportedly gone their separate ways after a year and a half of marriage.
The two were married for a year and a half, and share two daughters.
Bristol also took to Instagram to congratulate her little sister.
The former 'Dancing With the Stars' contestant shared some adorable new family portraits on social media on Sunday.
See the latest snaps from the proud mother of three.
The former reality star is opening up about her family's new addition and recent relocation.
The 26-year-old is already mom to 8-year-old Tripp and 1-year-old Sailor.
The 26-year-old reality star and husband Dakota Meyer welcomed their second child together, a sweet baby girl.
The 26-year-old is expecting her second daughter with husband Dakota Meyer.
The proud hubby shared pic of Palin getting an ultrasound.
The actor shared a touching tribute to his ex on Instagram.
The couple welcomed their fifth child, a boy, on Thursday.
