Jessa Seewald showed off her growing baby bump in a new Duggar family photo posted on Instagram.

"So great having all of our older daughters together while Jill is temporarily back in Arkansas!" Friday's image of a radiant Jessa and her smiling sisters was captioned.

People magazine said the 23-year-old, reality-TV and social-media star is due to give birth to her second child in February.

She and her husband Ben are already the parents of an 11-month-old son named Spurgeon.

Jill, 25, and her husband Derick Dillard have been working as missionaries in Central America.