David Beador is going to be a dad once more.
PEOPLE can exclusively confirm that his fiancée, Lesley Cook, is pregnant with their first child together.
"Lesley and I are excited to be expecting," David, 55, tells PEOPLE.
Cook, 36, seemingly teased the pregnancy news on her private Instagram Story Thursday, sharing a photo of a literal bun in the oven and writing, "You're just a small bump."
The baby on the way will be the third for Cook, while David shares three daughters — twins Stella and Adeline, 16, and Sophie, 19 — with his ex-wife, The Real Housewives of Orange County star Shannon Beador.
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Courtesy of David Beador David Beador and Lesley Cook
Courtesy Lesley Cook Lesley Cook's Instagram Story
Cook announced the couple's engagement on her Instagram account in January, showing off her new ring in a selfie featuring a shirtless David. She also posted another picture of her fiancé and sizeable diamond with the caption, "Looking forward to eternity with my love. I LOVE YOU LOVE!!!"
David confirmed the happy news exclusively to PEOPLE: "Yes, Lesley and I are excited to be engaged. We are celebrating in Miami and then going to the Super Bowl."
The engagement came after the pair dated for nearly two years, and nine months after David reached a divorce settlement with Shannon, 56, from whom he split in September 2017 after over 17 years of marriage.
Their relationship had many ups and downs, as documented throughout Shannon's time on RHOC. In season 10, she revealed that David was unfaithful to her. The couple then spent time repairing their marriage through therapy and even renewed their vows on-camera, but they ultimately decided to go their separate ways.
Jason LaVeris/FilmMagic David (R) and Shannon Beador with their daughters in 2015
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Shannon Beador on Co-Parenting With Ex-Husband: ‘I Want David to Be a Part of My Children's Lives’
"The Real Housewives of Orange County" airs Mondays at 9 p.m. ET on Bravo.
After a tumultuous court battle, the two settled their divorce in April 2019. According to the settlement details, David was instructed to pay $1.4 million "to equalize the division of community property" and $10,000 monthly in support.
The duo agreed to joint legal and physical custody of their daughters, and the reality star has been open about how she wants the split to be "amicable" for the sake of the girls.
"He's just a great person," Shannon said during BravoCon in November. "If I were to make a list of the perfect person for me, he has all those attributes. You see it in movies and you think it's not real. I've never been happier."