“William is 5 lbs., 4 oz., and came into the world wide-eyed and ready to raise havoc,” she jokes, adding, “Both babies are long like their parents — 19 inches.”

Huntsman and her husbandJeffrey Livingstonare already parents to 18-month-old daughterIsabel Grace.

The new mother of three’s father Jon Huntsman, the U.S. Ambassador to Russia, and her mother Mary Kaye came in from Moscow for the special delivery.

Abby Huntsman twins

Abby Huntsman twins

Abby Huntsman twins

Abby Huntsman twins

Though thrilled to be a family of five, Huntsman initially said that getting the news the couple were expecting twins was still a shock.

“When the doctor told us [it was twins], my husband fainted, which was just classic,” the then-mom-to-be saidwhen announcing her pregnancyin an exclusive January interview with PEOPLE.

“I think hesaw two sacs in there and Icould see it on his face. He turned white, and then when the doctor told us, he fell. Another doctor had to come in, and they were wiping him down with towels and giving him sugar,” Huntsman added of her husband. “I was sitting there with my feet still in the straps. I’m like, ‘This is ridiculous. I’m the one that has to physically do this.’ ”

Abby Huntsman twins

Abby-Huntsman-1

RELATED VIDEO: WatchJennifer LopezTear Up Remembering Her Twins Being Born

The couple conceived withoutfertility treatments, making thesurprise an even bigger one — and after the initial shock, a much-welcomed bit of news considering they wanted their children to be close in age.

“I’m one of seven kids, and I lovebeing around a bunch of siblingsbecause I think it teaches you independence, and it teaches you how to grow up quickly and also just be a good friend and be a good sister,” said Huntsman.

And while she was feeling “a mix of emotions” surrounding the news, she was “very excited” and “so grateful” for her pregnancy and that the babies were healthy.

source: people.com