Sister Wives star Maddie Brush (née Brown) and husband Caleb Brush are expanding their family, with the reality star revealing that they’re expecting baby No. 4. Maddie, 28, took to Instagram on Sunday,

Brush and her husband Caleb are also parents to son Axel, 7, and daughters Evie, 5, and Josephine, 19 months The Sister Wives family is growing. On Sunday, Sept. 28, Madison Brush, the daughter of Janelle Brown and Kody Brown,

Maddie and Caleb wed in 2016. They share a son Axel, 7, and daughters Evie, 5, and Josephine, 19 months. The news comes just one week after she announced she's launching a new flower farm business with her mother and husband.