Jessa Duggar's pregnancy craving is for fast food!

A pregnant Jessa Duggar enjoys Arby's with her husband Ben Seewald.(Instagram/Jessa Seewald)

19 Kids and Counting star Jessa Duggar has a thing for fast food, so now that she is enjoying the early stages of pregnancy, she is using that as the perfect excuse  to go out for a fast food meal or two.

And her husband Ben Seewald looks more than happy to accompany her. 

Jessa shared a photo of her holding up an Arby's container with Ben on her Instagram account (@jessaseewald) and captioned it: "Lunch date with my man! Yeah... because 'the baby' was craving Arby's! I love being able to use that excuse."

It looked like Jessa and Ben enjoyed Arby's famous roast beef sandwich paired with their Jamocha Shake.

Jessa announced her pregnancy on her Instagram account with a picture of a baby inside the mother's womb. The picture showed a baby in the first trimester when the baby is the size of a peach.

She has 27 weeks left to her due date and while it is still too early to determine the baby's gender, Jessa wrote, "#BabySeewald is growing! ❤ Already so in love with this little person!"

In the weeks before they confirmed their pregnancy, Jessa and Ben revealed their plans to have a huge family and adopt.

"We hope to adopt a lot of kids," Jessa told PEOPLE. "If God blesses us with biological kids of our own, it's not going to quench our desire to adopt."

Ben added, "Kids are so important."

Their good news came weeks after Jessa's elder sister Jill gave birth to Israel David Dillard, the fifth grandchild of Jim Bob and Michelle Duggar. The elder Duggar mum and dad are so excited that their already huge family is going to become even bigger in the next couple of months, and Michelle told Jessa that she might be carrying twins.

Michelle explained that twins run in their maternal line so there's a real possibility that one of the Duggar girls will give birth to twins.