Duggar Clan Set to Expand Again

(April 13) - The Arkansas parents of 18 children are expecting a new addition -- but this time it's their first grandchild.

The oldest son of Michelle and Jim Bob Duggar, Josh, and his wife, Anna Keller Duggar, announced their news on NBC's Today Show Monday.

"I am three months right now and feeling great," Anna told Today's Meredith Vieira. "Morning sickness is pretty much all gone. I'm looking forward to having my baby."

Josh and Anna, who are expecting on Oct. 12, were married on Sept. 26. The two had a supervised courtship and were allowed to hold hands but not kiss. Their wedding later aired on the family's TLC reality TV show, then called "17 Kids and Counting."

The baby will have an aunt who's less than a year older -- Josh's youngest sibling, Jordyn, is only 4 months old.

"We are so thrilled and so excited for Josh and Anna," said Michelle Duggar on Today.

All of the Duggar children's names start with the letter J. Josh said he and his wife are thinking of using the letter M as a theme letter, in honor of his mother.

And how many M-names will they have to come up with? Asked how many children he and Anna plan to have, Josh said, "We're leaving that up to God."

Get the full story from Today.