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Kody has a total 18 children that range in ages from 26 to 4 years old.
His youngest child is four-year-old daughter Ariella, whose mother is Robyn.
The couple also share son Solomon, Robyn's three oldest children — Dayton, Aurora and Breanna — are from her first marriage.
Kody continued in the clip: "I'm pretty sure that I've been having kids for 26 years. There's this real joy about having a little one."
While he said raising Ariella has been "just a wonderful experience," Kody admitted may not want more kids.
He explained to Robyn: "But at the same time, I'm caught in this conflict 'cause Ari's been weened for a year and she's still keeping us up at night."
Robyn argued that things "started to get better when she was weened and stuff," though Kody disagreed: "No, it's not better."
She then revealed to Kody that she may want more kids, stating: "Women talk about that feeling of like, 'Oh, I'm done.' I've never really got that."
Robyn told the cameras: "You know when you're young and you're just thinking about having children and people will say, 'How many kids are you going to have?' I would always say, 'Just as many as I'm supposed to have. As many as I've made promises to."'
She became emotional and began to cry as she continued: "It is, it's a big deal to me. To make sure, to make sure all my babies are here with me. That's all."
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In addition to being a father of 18, Kody is also a grandfather.
Earlier this week, Kody and Christine's daughter with husband Tony Padron- a daughter named Avalon Asla.
Mykelti shared the news by captioning a photo holding her daughter with husband Tony staring down at their little one: "Happy healthy fun news!!! and I are parents to our baby girl Avalon Asa Padron who was born on Monday.
"She’s gorgeous and amazing and our home birth went awesome. Tony and I are so ecstatic with her and overjoyed at what a blessing she is."
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