Jill Duggar and her family (including baby Israel!) congratulated Jessa Duggar on her pregnancy in a brand new video; plus, get updates from Derick Dillard on the tot's latest milestones. Credit: Courtesy of the Dillard Family

Many more cousins and counting! Jill Duggar and Derick Dillard sent a congratulatory video message to pregnant Jessa Duggar and Ben Seewald, who recently announced that they are expecting their own little one.

Joining the proud parents was their newborn son Israel, 3 weeks, nestled up in his mom's arms.

"Hey everybody, we're the Dillards. I'm Derick and this is Jill, and our newest member Israel. We wanted to send congratulations to Jessa and Ben on your recent pregnancy announcement," Dillard said with one arm around his wife. "We love you guys and we think you'll make awesome parents."

Duggar chimed in and said: "We're so excited and little Israel can't wait to have another Duggar cousin!"

TLC confirmed to Us Weekly last Tuesday, April 21, that Jessa and her husband were expecting their first baby together. The proud future mom later tweeted: "Ben and I are so excited to announce that we're expecting a baby!!!!! Due Nov. 1st! #BabySeewald @BenSeewald"

And Jessa certainly has babies on the brain, sharing a photo of her sweet nephew Israel this past Saturday while spending time with her big sister. "This little man is too cute! #IsraelDavidDillard #BabyDilly @jillmdillard @derickdillard," Jessa wrote, alongside shots of the yawning baby Israel.

While the newborn tot looked at peace in the photos, his father Derick said it's been quite the ride for the entire Dillard family.

On Wednesday, April 28, Derick blogged about his experiences in a post titled: "#NewDad."

"My son Israel nursed 20 min, threw up 4 times, and went through 3 diapers… all within the span of about an hour and a half last night," he wrote. "I’m sure this scenario is all too familiar to millions of parents who, at one time, have had the joy of caring for their infant child. I have much more respect for those dads who have gone on before me and experienced those early stages of fatherhood."

Dillard then drew an extended metaphor, looking back on his frat days. "In college I was in fraternities, and I compare my last two weeks to somewhat of an initiation into fatherhood," he wrote. "The learning curve has been pretty steep since Israel was born. Unlike my wife, I only have one sibling, my brother Dan who is 24, and there are no kids under 18 in my extended family. Being the father of a newborn isn’t always easy, but taking care of my son is so rewarding. I’ve learned that since babies can’t talk or walk, they communicate by crying. Whenever he’s crying, I’ve started just going down a list of possible solutions: 1) Ask him what’s wrong, and then remember that babies can’t talk 2) Change diaper 3) Burp him 4) Bounce him 5) Give him to momma Jill to feed 6) Repeat until crying stops. It has been a fast and furious transition, but I wouldn’t trade it for anything."

As for how Jill has been handling first-time motherhood? "Well," he concluded. "She is a champion."