The news comes a year after the couple married in Montana last summer.
The wildlife activist is expecting her first child.
The 26-year-old singer announced she's expecting on Wednesday.
The couple already share a 5-year-old son, Titan.
The reality star and her husband shared the news to Instagram on Sunday.
The actress is expecting a baby boy with Garrett Hedlund.
The couple had named their third child Jack.
The cook book author shared the news on Wednesday night.
The MTV star talks to ET about considering abortion.
The mom-to-be and her fiancé, Randall Emmett, fill ET in on their emotional and sometimes scary pregnancy journey.
The model was previously put on mandatory bed rest due to excessive bleeding.
The model said she's at a 'really dangerous' stage in her pregnancy.
The reality stars learned the sex of their forthcoming first child and a gender reveal party over the weekend.
The actress is reflecting on her pregnancy journey.
