Pregnant Jana Kramer Celebrates Halloween with Kids Jace and Jolie: 'Can't Handle the Cuteness'

The country singer shares her two older kids with ex Mike Caussin, and she's currently pregnant with her first baby with fiancé Allan Russell

Jana Kramer is making the most of Halloween and the last few weeks of her pregnancy.

The pregnant country singer, 39, celebrated the day by sharing a sweet photo of her son Jace, 4½, and daughter Jolie, 7, as they dressed up as Mario and Princess Peach. "I can't handle the cuteness," the proud mom wrote across the photo, posted to her Instagram Story.

Kramer also shared some videos of her kids trick-or-treating, recording them as they asked for candy around the neighborhood.

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Related: Pregnant Jana Kramer Steps Out in N.Y.C. Four Days After Revealing Hospital Stay for Bacterial Infection

While recently speaking with Brian Austin Green and Sharna Burgess on her podcast, Whine Down, about co-parenting, the podcast host shared a sweet scene that recently unfolded between fiancé Allan Russell and ex-husband Mike Caussin, with whom she shares her two older kids.

"My ex-husband was here the other day dropping off the kids because he knew that me and my fiancé were moving into our new house, and he's like, 'I'll just come drop the kids off,' " the expectant mom shared.

"And he came in and he had a beer with Allan," she continued, noting that as she took in the moment between her ex and her fiancé, "I remember sitting there going, 'This is really cool. I never would have dreamt it this way, but this is cool.'"

Chatting exclusively with PEOPLE at the iHeartRadio Music Festival in Las Vegas last month, Kramer spoke candidly about the challenges she is facing during pregnancy this time around.

“Obviously it's been a little bit harder. I’m just a little older and this is my third kid,” she said.

“Things are a little different now, but it's great," she continued. "I'm just so blessed. I didn't think this would be possible, so it's a beautiful, beautiful thing.”

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