Anna Duggar congratulated sister-in-law Jessa Duggar on her first pregnancy with a cute Instagram photo of their matching baby bumps and Jessa's sister Jill Credit: Courtesy of Anna Duggar/Instagram

The Duggar household is bumpin'! After news broke on Tuesday, April 21, that Jessa Duggar is pregnant and expecting her first child with husband Ben Seewald, sister-in-law Anna Duggar (wife of Jessa's older brother Josh) took to Instagram to congratulate the 19 Kids and Counting star on her baby joy — something Anna is also experiencing now.

Anna, who's due to welcome her fourth child with Josh this July, shared a baby bump photo of herself, Jessa, and Jessa's older sister Jill, who gave birth to her first child on April 6. The pic, taken before Jill went into labor, shows the three pregnant Duggar girls cradling their bellies and smiling brightly for the camera.

"Congratulations Ben & Jessa on your pregnancy!" Anna captioned the sweet shot. "It was so fun to have all 3 of us pregnant together!!!"

As previously reported, TLC confirmed Jessa's pregnancy to Us Weekly on Tuesday afternoon. Not long after, the first-time mom-to-be, 22, gushed about the news on Twitter, writing, "Ben and I are so excited to announce that we're expecting a baby!!!!! Due Nov. 1st! #BabySeewald" 

The little boy or girl-to-be will be Jim Bob and Michelle Duggar's sixth grandchild. Josh and Anna are already parents to daughter Mackynzie, 5, and sons Michael, 3, and Marcus, 22 months, with another baby girl on the way. And Jill and husband Derick Dillard welcomed son Israel David earlier this month.