She also added that her family recently added a new member, a 2-year-old French bulldog named Leonard. He joined the family's dog Gracie, who was adopted in 2010 after graduating from a training program in a Florida prison.
Spencer-Wendel called Leonard a "20-pound snuggle machine."
"I love it when Leonard lies on my chest, flat like a frog, and snores. The children laugh each time they see me like this because Leonard is there," she wrote. "They also have figured out that baby clothing (size 6-month) fits him. Last night they had him in a hoodie jacket, rapping."
The movie rights to her story have already been optioned, but Spencer-Wendel says she doesn't have an actress in mind to play her.
"I truly have no opinion about this. I don't know who has the talent best suited for it. And that is what matters. Not how they look," she said. "That said, I would hope for an actress who is as funny as she is dramatic."
The book is being translated into 20 languages and distributed on four continents.
The longtime reporter has been "surprised and overwhelmed" by the response to her story, especially after little feedback to hundreds of stories she wrote as a journalist.
"The messages and people have been so dear," she told ABCNews.com. "If it wasn't a nightmare, it would be a dream come true -- bunches of people saying nice things about you and getting paid royally to write! Smile."