Madison shared she was expecting her first baby with boyfriend Ryan Mitchell on Thursday, Sept. 5

After Demi Lovato’s younger sister Madison De La Garza announced she is expecting her first baby, the “Heart Attack” singer supported their sibling by leaving a sweet message.

On Thursday, Sept. 5, De La Garza, 22, shared on Instagram that she is pregnant and expecting a baby with her boyfriend Ryan Mitchell, holding her baby bump in a photo. In the comments, De La Garza’s musician sister, 32, wrote, “I love you and this baby so much already!!”

Lovato later reshared De La Garza’s announcement on their Instagram Stories, writing, “Congratulations baby girl. I love you so much!!!”

In her caption, De La Garza shared that she is due in October. “Oh ryan, how I love you. thank you for making all of my dreams come true. ♥️ baby mitchell 10.24,” she wrote.

Elsewhere in the comments, De La Garza received support from mom Dianna De La Garza, 62, who wrote, “Woohoooo. I’m gonna be a REAL GRANDMA D NOW!!!! Love youuuuu!! ❤️❤️❤️.”

De La Garza’s cousin, Cruel Summer star Braeden De La Garza, also shared his reaction, saying, “My uncle training will finally pay off,” he wrote.

As Lovato gets ready to become an aunt, they are also gearing up to walk down the aisle.