Arkansas family prepares for baby number 19

The prolific Duggar family, stars of the TLC show "18 Kids and Counting," are adding another child to their already overwhelming brood.

Photo: Arkansas family prepares for baby number 19

Arkansas family prepares for baby number 19

"We are thrilled to announce that we found out we're expecting our 19th child," mom Michelle Duggar told the "Today" show Tuesday morning.

The 42-year-old Arkansas mom - who has been pregnant for an inconceivable 12 years of her life - was surprised to find out she was expecting again just eight months after giving birth to baby number 18.

She grew suspicious when she had trouble breast feeding and failed to lose baby weight despite following Weight Watchers.

Michelle and her husband, Jim Bob, will actually be grandparents for the first time before their 19th kid is born, reports New York Daily News.

"We are so thrilled," says Michelle, 42. "We just couldn't believe it is happening." Jim Bob, 44, agrees: "This never gets old. We are so grateful for each child. We are looking forward to our first grand baby and our 19th child."

Oldest son Joshua, 21 and his wife Anna, 21, are expecting daughter Mackynzie Renée next month, so she will be older than her new aunt or uncle.

"I think it is going to be awesome, it is going to be great," says Josh about the news that his parents are expecting. "We have been looking forward to the arrival of my little girl and to now get to celebrate for my parents, it's a wonderful thing," reports People Magazine.