November 19, 2013 04:00 PM

Chris Powell has never been so thankful for a six pack.

The Extreme Weight Loss trainer, 35, and his wife Heidi, 31, welcomed a daughter on Saturday, Nov. 16, their rep confirms to PEOPLE exclusively.

Born at 8:20 a.m., Ruby Lane Powell arrived weighing 6 lbs., 15 oz. and measuring 20 inches.

“We are so incredibly grateful for such a beautiful and healthy little addition to our family. The six pack is now complete,” the couple tells PEOPLE.

Courtesy Chris Powell

Baby girl joins 2-year-old Cash, who is “so eh-sited (excited)” about being a big brother, and Marley, 6, and Matix, 8, Heidi’s children from a previous relationship.

Chris, who is also the author of Choose to Lose and Choose More, Lose More for Life, and Heidi announced the pregnancy in June.

Courtesy Chris Powell

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