Photo: ROBYN BECK/AFP via Getty

Chrissy TeigenandJohn Legendare overjoyed to welcome a new little one to the family.
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Chrissy Teigen/Instagram

The couple’s two older children, sonMiles Theodore, 4½, and daughter,Luna Simone, 6½, are also “so excited” about their new sibling.
“It’s such an amazing way for them to start the new year,” the source adds.
Chrissy Teigen Instagram

In September, Teigen, 37, told PEOPLE that Luna and Miles were “very excited” about their family’s new addition and that they learned about her pregnancy early on.
“Since we did IVF, we knew probably nine days after we did the transfer that it had worked and we were pregnant,” she said. “I told them very, very early.”
“They knew that I was going in for the transfer, that we were going to go in and put this egg inside Mommy’s belly. Sothey knew from the very, very beginning, and they knew there was a chance it might not work because that’s happened before,” explained Teigen, whoannounced her pregnancyin August.
“They’ve been excited for a long time,” added the star of her two older kids. “I feel like this is going to be the longest pregnancy to them because they’ve known since the day. But they’ve been really very excited.”
source: people.com