"Little People, Big World" stars Zach and #Tori Roloff are officially a family of three. Tori delivered the couple's son, Jackson Kyle, on May 12. The couple shared the news with fans on Mother's Day along with the baby's first photos.

Fans are thrilled that Zach and Tori have been posting photos of their newborn son on Instagram. Their little bundle of joy is cute as can be. Zach tells TLC that little Jackson is doing really well and he and Tori are "loving being parents."

Does baby Jackson have dwarfism?

The "LPBW" stars have yet to address whether or not baby Jackson has dwarfism. Zach suffers from the condition and, in a recent episode of "LPBW," he was upset that results from an ultrasound showed that the baby's limbs measured shorter than average.

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However, at that time, doctors didn't confirm whether the baby would be born a dwarf.

Tori loves being a Mom!

Tori Roloff is loving every minute of motherhood. Just a few days after giving birth, she shared a second photo of baby Jackson on Instagram. Her caption makes it clear that she is thrilled being a first-time mother.

"My heart is so unbearably full," Tori captioned the photo. "I've only spent 4 days with this little guy and I have fallen In love completely with him. This is what I was meant to do. Mommy loves you, Jackson! #BabyJK #zandtpartyofthree."

Zach's mom, Amy, shared the big news on Facebook and it's clear that she's thrilled that her grandson arrived on Mother's Day weekend.

"What a wonderful Mothers Day like no other," Amy Roloff wrote on Facebook. "My baby (Zach) and his wife just had their first baby.

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I'm so proud so happy I can't contain myself. I love them! My grandson is perfectly perfect!"

Zach and Tori finally agree on a name!

During the season premiere of "Little People, Big World," Zach and Tori discussed names for their son. They didn't like any of the names they initially came up with, but's clear that they are totally smitten with Jackson.

Before they finally agreed on Jackson, Zach shared his baby name ideas with Tori. Mikey, Jack, Timothy, and Boaz were his favorites, but she didn't like any of the names Zach picked.

She went ahead and came up with two that she like — Noah and Malachi. During the "LPBW" premiere, Tori revealed why Noah was her favorite name.

“I really like Noah," Tori told Zach. "I like names that not everyone has. You know, like when your child goes to school, he’s one of the only kids that has that name.”

Apparently Zach didn't like her name choices, either.

The one name they did agree on was a name that wasn't mentioned during the premiere. Somewhere between filming the new season of "Little People, Big World" and the day the Roloff's baby was born, Zach and Tori decided to name their son Jackson Kyle.

Watch "Little People, Big World" on Tuesday nights at 8 p.m. ET on TLC. #Zach Roloff #Little People Big World