Jessa Duggar's baby bump on display in adorable photo shared by Anna Duggar

(l. to r.) Jill Dillard, Anna Duggar, and Jessa Seewald show off their baby bumps.(Photo: Instagram/Anna Duggar)

A trio of baby bumps were showcased in a photo posted by Anna Duggar on Tuesday.

Anna is the wife of the eldest Duggar child, Josh, and is about six months pregnant in the photo, and joining her were Jill Dillard and Jessa Seewald.

Josh and Anna are expecting their fourth child on July 10 and live in Washington D.C. It appears they paid a visit to the Duggar family home in Arkansas recently, and the family captured three of their family members pregnant at the same time.

Jill gave birth to Israel David on April 6, so the photo was taken some time before April 4, when Jill went into labour. Jessa also showcased a small baby bump in the picture, which went public after Jessa's baby announcement on Tuesday.

"Ben and I are so excited to announce that we're expecting a baby!!!!!" she wrote on Instagram on Tuesday. "Due Nov. 1st! #BabySeewald @BenSeewald."

The 22-year-old included a picture of herself smiling at her husband, Ben, with their hands on her stomach.

Anna was eager to share the photo she captured weeks earlier.

"Congratulations Ben & Jessa on your pregnancy!" she wrote on Instagram. "It was so fun to have all 3 of us pregnant together!!!"

Jessa and Ben, 19, married on November 1, and "19 Kids & Counting" fans have been anticipating her pregnancy announcement. The couple confirmed the news with PEOPLE Magazine on Tuesday.

"We are so excited," Jessa said. "We have started talking baby names. It is one of those things that is so special, picking a name for a baby."

"We pray every night that God helps us be good parents," Ben added. "We are getting advice from other parents."

Ben's mother-in-law would be the ideal source of wisdom for the couple, having birthed 19 children in 21 years.