Jessa Duggar has given fans a new glimpse of her growing baby bump.

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The 23-year-old reality star shared a side-by-side comparison of her baby bump during her first and second pregnancy on Instagram.

"First - second #25 weeks," she captioned the Tuesday picture.

Duggar is mom to 11-month-old son Spurgeon with husband Ben Seewald.

The couple married in Bentonville, Ark., in 2014, and announced in August that they're expecting their second child in February.

"We are overjoyed to announce that Spurgeon has a new title in life as 'big brother'!" the pair said at the time.

"We are so thankful that God is adding to our family."

"2017 is shaping up to be a wonderful year already and we know Spurgeon will do a great job in his new role," they added.

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"Having Spurgeon has been such a wonderful blessing and we cannot wait to see the face of this sweet new baby (or babies!)."

Duggar had said on the after show for Tuesday's episode of "Jill & Jessa: Counting On" that her second pregnancy seems like it's going by faster.

The star was 17 1/2 weeks pregnant at the time and said she was "feeling great."

"I think with the first pregnancy, it seemed a lot longer because every week [we were] counting down the weeks, the months, until the baby would be here. This time around we are chasing little Spurgeon, and so I think the weeks are going by a lot faster," she explained.

Duggar and her family came to fame on the TLC series "19 Kids & Counting," which was canceled in the wake of her brother Josh Duggar's sex abuse scandal.

She and several of her siblings now star on "Jill & Jessa: Counting On," which airs Tuesdays at 8 p.m. ET.