The 28-year-old, who shares three kids–son Axel Brush, 7, and daughters Evie Brush, 5, and Josephine Brush, 19 months–with her husband of about eight years, revealed that she and Caleb are expecting baby number four!

On Sunday's all-new Sister Wives, Janelle called out her ex Kody and his wife Robyn for mismanaging the situation with their youngest daughter, Ariella, early in life.

Sister Wives' star Maddie Brown, whose parents are Kody and Janelle Brown, announced she's pregnant with her fourth baby