The 23-year-old – who shares custody of Stormi with ex-boyfriend Travis Scott – admitted she found pregnancy challenging.
"Pregnancy is just not a joke," Kylie told Stassie. "It's a serious thing and it's hard. I'm not ready for that just yet."
The make-up and skincare mogul also opened up about how she was keeping her toddler daughter occupied at home during the coronavirus quarantine period.
"I have bought Stormi all of the outdoor games possible, a bouncy house, a slip and slide, everything," she said in the Instagram Live. "She's been outside every day. I'm trying to keep her entertained."
"As a kid, she has no idea what's going on in life. It's amazing," Kylie added.