July 01, 2016 11:15 AM

Peta Murgatroyd spent her first months of pregnancy extremely nauseated. But now in her second trimester, the reigning Dancing with the Stars champion is enjoying giving in to her pregnancy cravings.

Not that she’s piling on the junk food.

“I’m glad I ate really healthily before I got pregnant because I don’t crave McDonald’s and doughnuts and stuff like that,” says Murgatroyd, 29, who revealed she is expecting her first child with fiancé Maksim Chmerkovskiy in the current issue of PEOPLE.

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But even though Murgatroyd isn’t chowing down on Big Macs, she admits her eating habits have become … unusual.

“My diet right now is crazy. I crave fresh fruit and pickles and I’ll have everything at the same time,” she admits. “I’ll have organic salsa and chips and then pineapple, and I’ll finish it with two pickles.”

Chmerkovskiy, 36, believes Murgatroyd’s “clean lifestyle” has made the pregnancy “easier” on his fiancée of almost seven months. And he’s been captivated by how her body has already changed.

“I’m fascinated with what is happening with the body. Going to the ultrasounds and seeing everything is incredible,” says Chmerkovskiy, who is currently on the road with his brother Valentin for Maks & Val: Live on Tour.

The couple does not know whether they’re having a boy or girl yet, but “seeing the fingers and toes is very exciting.”

“I’m looking forward to nurturing something and just having the baby be the center of our world,” adds Murgatroyd, who is due in January and plans to wed Chmerkovskiy next summer. “I’m looking forward to putting all our energy into this beautiful soul.”

For more from Chmerkovskiy and Murgatroyd, pick up the latest issue of PEOPLE, on newsstands now.

Patrick Gomez

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