Jill Duggar, hubby Derick Dillard, and their son Israel left Arkansas on Monday to return to El Salvador, where they serve as Christian missionaries.

The family said goodbye in a Facebook post, as well as on their Dillard Family website.

“We had a great visit recently to the States and as always it was a little hard to say goodbye! We are headed back to Central America. In the weeks ahead language school will become much more intense as we work to become fluent in Spanish. It will be many months before we are able to make a short visit back to the States again. Here’s a few pics as we left this weekend. Please keep praying for us–we are praying for you!” the post reads.

Jill (Duggar) and Derick Dillard return to Central America to continue their mission trip http://t.co/d2Ybesc25H pic.twitter.com/RnSV6d1SAl

— People magazine (@people) October 19, 2015

Jill Duggar and Derick Dillard have come under fire in recent weeks because of the donations they solicited via this same website for their work as missionaries. Some believe they haven’t used the donated funds properly. As a result, Jill and Derick have added a refund button to their website, so that those who feel this way can get their money back.

It has been a bit questionable as to why Jill Duggar and Derick Dillard have made two trips home to Arkansas from Central America since first leaving on their missions trip this summer. On one occasion they attended the wedding of a member of the popular Bates family–another large family with a reality TV show with whom the Duggars are close friends. During that trip Jill Duggar–along with sister Jessa Duggar Seewald and their mom Michelle Duggar–filmed the TLC special on sexual abuse in New York.

This most recent trip to the U.S. no doubt found Jill Duggar and Derick Dillard once again filming for TLC. A clip of some upcoming TLC specials, titled Jill & Jessa: Counting On–set to air in December–was released Monday. This show could eventually become a 19 Kids and Counting spinoff.

In the new clip, Jill Duggar and her sister cry openly about the recent scandals involving brother Josh Duggar, that have rocked the Duggar family to its core.

If the show takes off, it’s likely Jill Duggar and Derick Dillard will make even more trips home to the U.S. for filming, unless TLC opts to send a film crew to Central America to catch Jill and Derick in action as missionaries.

In the meantime, Jessa Duggar Seewald must be heartbroken that Jill Duggar has once again left for El Salvador. Jessa is due to have her first baby with hubby Ben Seewlad on November 1st, and likely hoped midwife sister Jill would be present for the birth.

Do you think if Jill & Jessa: Counting On takes off that TLC might capture some of what Jill Duggar and Derick Dillard are doing as missionaries? That might quell the outcry from those who believe the couple has misused donated funds.