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Selena Gomez is going to be a big sister. While celebrating Mother's Day, Selena posted a photo posing with her mother and her baby bump. 

She also shared the news on Miami's Y100, when she sat down with Y100's Mack. She reavealed the news after he asked Selena what her Mother's Day plans were. Check out the interview below:

Mandy and Selena's father Ricardo divorced when the star was five years old, and Mandy married her current husband Brian Teefey back in 2006.  The couple was expecting a baby in 2011, but Selena's mother sadly miscarried about one month after giving her daughter the go-ahead to make the news public. 

At the time, Selena canceled two concerts in order to be with her mother and later revealed that she had lost a baby sister named Scarlett, who she called her "guardian angel."  

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