No parent wants to see their child in the hospital, but that's what happened with first-time mother Kylie Jenner over the weekend. The "Keeping Up With The Kardashians" star revealed on social media that she spent all of Sunday in the hospital after her daughter Stormi suffered an allergic reaction.

The 21-year-old did not disclose what Stormi, who is 14-months-old, had a reaction to, but she updated her 137 million followers on Instagram about her condition. Jenner shared a photo of Stormi sleeping with a pacifier in her mouth and captioned it, "Spent the day in the hospital with my baby. She had an allergic reaction but is 100% okay now and we are home."

Jenner then added that she was sending "love and positive energy" to other parents of ill children.

"God bless all the moms with sick babies. I'm sending so much love and positive energy your way," she wrote.

Stormi is Kylie's first child with rapper boyfriend Travis Scott. Last November, Scott spoke with Ellen DeGeneres about holding his daughter for the first time in the delivery room. "Going into it I was, like, nervous and scared," he said.

"You know, we were just both, like, young. But when you first have a baby in your arms, it's just, like, it's uncontrollable. It's like this whole, like, warp that takes over your whole body. I never thought I could just, like, love something so hard, you know? It's crazy."

And while Jenner and Scott are not engaged, they do live together in a city home, while Jenner also still has her Calabasas home, she told Vogue Australia last year. "We never miss a night with each other," Jenner said.

Kylie Jenner and Travis Scott
TV personality Kylie Jenner and Travis Scott arrive for the 61st Annual Grammy Awards on Feb. 10, 2019, in Los Angeles. Getty Images/VALERIE MACON