Baby number six is on the way for “19 Kids and Counting” alum Josh Duggar and his wife Anna, who announced Fridaythat she is expecting.

The happy development came via an Instagram post from the expectant mother, who wrote that they “are expecting a new little one!”

ANNA DUGGAR SAYS ‘PAST 10 YEARS’ WITH HUSBAND JOSH DUGGAR ‘HAVE BEEN A WONDERFUL ADVENTURE’

“As we watch our children grow and thrive — we look forward to baby six joining us this fall!” she continued, adding the hashtag “littleduggars.”

Duggar also posted a pair of clips, in which the couple’s kids were handed letters of the alphabet and worked to reveal the exciting news.

CLICK HERE FOR THE FOX NEWS APP

The message laid out on the floor read: “New baby coming this fall.”

The couple are already parents to Mackynzie, Michael, Marcus, Meredith and Mason.

Fox News’ Kathleen Joyce contributed to this report.