Straight from the horse's mouth!

Kim Kardashian and her sisters Khloe and Kourtney appeared on Watch What Happens Live last night, and the reality star finally confirmed the rumors that she's adding baby #4 to the mix!

"We do [have a due date]," she revealed, noting that it's "sometime soon." Wow!

So why did she decide to candidly drop the bombshell on the late night talk show?

"Well, it’s out there. … I got drunk at our Christmas Eve party and I told some people. I can’t remember who I told, because I never get drunk," she joked.

Kimmy K wasn't the only one answering the hard questions, though! Andy Cohen asked the gals about Tristan Thompson's cheating scandal and Khloe's decision to stay with him, as well as how Kourtney would react if Scott Disick got engaged to Sofia Richie... you gotta watch!