19 Kids Ben Jessa 1
"19 Kids and Counting" stars Jessa and Ben Seewald are expecting their first child together. Sister-in-law Anna Duggar (not pictured) shared a photo of her baby bump. TLC

Jessa Duggar may have been keeping her pregnancy a secret from “19 Kids and Counting” fans, but her family has known about the big news for some time now. Following Jessa’s exciting announcement that she’s expecting her first child, sister-in-law Anna Duggar shared a sweet family photo.

The picture, which was posted on social media, shows Anna Duggar, Jill Dillard and Jessa Seewald – all with their baby bumps! While Jessa is barely showing, viewers can see that Jill is ready to pop. The photo was taken prior to April 6, when Jill gave birth to her and husband Derick Dillard’s first son, Israel David.

“Congratulations Ben & Jessa on your pregnancy!” Anna captioned the photo on Instagram. “It was so fun to have all 3 of us pregnant together!!!”

Anna’s pregnancy is not news to “19 Kids and Counting” viewers. Josh Duggar, the eldest of Michelle and Jim Bob Duggar, and his wife announced that they were expecting their fourth child in December. The dad of three told the Washington Post that Anna is due in early June.

Meanwhile, Jessa and her husband Ben are excited about becoming new parents. The pair shared their happy news on social media Tuesday afternoon, posting a photo of a baby onesie with the text: “Coming Soon 11.01.2015.” In a video posted by TLC, the reality stars teased that they might be expecting twins.