Selena Gomez spent Mother's Day with her own mom, who is about to be a mom once again!

Selena, 20, tweeted a photo with her mom Mandy Teefey, writing, "Hope all the amazing moms had a great day! I have the best momma in the world :)) I love you so much!"

Selena's parents divorced when she was 5, and Mandy married Brian Teefey in 2006. This will be Mandy's second child, and we hope he or she comes into the world happy and healthy. In 2011, Mandy, then 35, suffered a miscarriage and lost the baby girl she named Scarlett. 

Credit: @selenagomez Photo: Selena Gomez and her pregnant mom back in May 2013

Mandy was also an actress, and she's the one who influenced Selena, who had her first role on Barney & Friends at age 7. "My mom did a lot of theater, and I would watch her rehearse," Selena told People in 2009. "When she got ready for the show and put on her makeup, I would sit behind her and color. She said, 'You have my lines memorized better than I do!' One day I said, 'I want to be like you!' My first audition was when I was 7. I was standing in line with 1,400 kids on a hot Texas day, and that's where I met Demi Lovato!"

Selena credits a lot of her own success to her former single mom's hard work to create a better life for them.

Congrats, and good luck, to the growing family!

Sources: @SelenaGomezUs WeeklyPeople, TheStir