It’s an exciting time for Chrissy Teigen and hubby John Legend. The couple just revealed that they’re expecting baby No. 2! And they shared the news with the help of their adorable 18-month-old daughter, Luna.

The 31-year-old model took to Instagram today to make the big announcement. In a video of herself and her little one, Teigen gestures to her stomach and asks, “Luna, what’s in here?” The toddler sweetly replies, “Baby!” Happy laughs can be heard in the background as the sweet soon-to-be big sister looks at her mom’s belly and continues to say, “Baby.”

Teigen captioned the video using her ever-cheeky sense of humor, joking, “It’s John’s!”

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it's john's!

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The cookbook author and the “All of You” singer revealed back in October that they were ready for their second child, which they were hoping to conceive with the help of IVF.

Teigen has been incredibly open about her fertility struggles in the past. As she told InStyle, she started with 20 embryos during their first IVF round, and though three were viable, she explained, “The first little girl didn’t work, and then the second is Luna.”

This time around, she told Entertainment Tonight, “Oh my god, a little boy is next for sure.”

We can’t wait. Congratulations to the growing family!

Are you excited that Chrissy Teigen and John Legend are having a second baby? Let us know @BritandCo!

(Photo via Frazer Harrison/Getty)