Earlier this week, Jessa Duggar and Ben Seewald made a visit to the Institute for Creation Research in Texas. The couple, who is expecting, took a tour and met some of the scientists who work there.

Ben posted a photo of the pair on Instagram, captioning it, "This morning, Jessa and I had the privilege of visiting the Institute for Creation Research! We got to tour and meet all the scientists there! Really cool! Got to chat with Dr. Jason Lisle."

Ben went on to describe Dr. Lisle's qualifications and a little bit about his academic history. The doctor graduated with honors from Ohio Wesleyan University with a double major in physics and astronomy, and a minor in mathematics.

He also has a master's and Ph.D. In astrophysics, which he earned from the University of Colorado. Ben had an interview with the scientist, which he posted a clip of on Youtube. Sources say that his wife's pregnancy is going will.

Jessa, 22-years-old, is pregnant with her first child, with Ben, 19 years of age. The source says that the 19 Kids & Counting star, newlywed, and mom to be is feeling great.

Apparently, she had a spell of illness for a few weeks earlier in the pregnancy, but now she is doing much better.

The couple teased fans a few days after revealing that they were expecting, implying that they may be having two babies instead of just one.

In a TLC clip, Jessa said "You know, pretty soon we'll be making another little smoothie." Fans are certainly hoping for twins!