Maria Shriveris over the moon that her daughterKatherine Schwarzeneggerwill soon be walking down the aisle, but doesn’t want to speak publicly on it just yet.

The 63-year-old author spoke to PEOPLE exclusively while promoting hernew podcastMeaningful Conversations with Maria Shriverand revealed why she wouldn’t talk about her 29-year-olddaughter’s engagement to Chris Pratt.

“I am not going to talk about it because it isn’t even like eight hours old, so I’m just trying to let them direct,” she said. “It isn’t about me. So I’m going to follow their lead.”

Shriver has four children with ex-husband Arnold Schwarzenegger including daughter Christina, 27, and sons Patrick, 25, and Christopher, 21.

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While the NBC News correspondent wouldn’t say more, she did comment on her daughter’s and Pratt’s Instagram posts in which they announced the happy news.

On Schwarzenegger’s Instagram, the proud mother commented, “Love you enjoy this next chapter make it fun you are so loved.”

Chris Pratt instagram https://www.instagram.com/p/Bsmy0gUFIt7/

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Katherine Schwarzenegger instagram https://www.instagram.com/p/Bsn4v8Fh_rw/

maria shriver

arnold schwarzenegger

Her father, Arnold, also commented, writing, “Congratulations to both of you! I love you!”

Pratt, 39,announced their engagement early Monday morningin an Instagram post in which he and Schwarzenegger cuddled up with her engagement ring front and center.

“Sweet Katherine, so happy you said yes! I’m thrilled to be marrying you. Proud to live boldly in faith with you. Here we go! 💍🙏♥️,” he captioned the photo.

“He asked for Maria and Arnold ’s blessing and was very traditional about things,” the source said.

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The two bonded over their Christian faith early on and a different source told PEOPLE in this week’s issue that it will be front and center at their wedding.

“They’re going to want a religious wedding,” the source said. “I know that Chris does, and I assume that she does, too. God is going to be a part of this marriage.”

Another insider close to Schwarzenegger added the two likely won’t wait long before tying the knot.

“They are one of those rare couples that you root for from the beginning. It won’t be a long engagement — Katherine has already talked about having a summer 2019 wedding.”

source: people.com