Hours before the news broke that the couple was expecting, the "Butterfly Effect" rapper made an appearance at at LIV nightclub at the Fontainebleau in Miami with Kourtney Kardashian's ex, Scott Disick, on Thursday night.
A source told ET on Friday that the 20-year-old makeup mogul “always wanted to be a young mom.”
"She may be young, but she's very maternal and has lots of practice with babies! She's a very hands-on aunt and was basically a step-mom to Tyga's kid,” the source said.
The "baby will be very well cared for and so loved," the source added. "Kylie is excited that her baby will have cousins close to her age too!"