As Life & Style previously reported, Kourtney Kardashian is pregnant with baby No. 4, but the role of the father — which could be Justin Bieber or Scott Disick — is still up for grabs!
According to a source, Kim Kardashian, Khloé Kardashian, Kendall Jenner and Kylie Jenner, all originally assumed that Scott was Kourtney's baby daddy, as he is the father of her other three children, and has been trying to patch up their rocky relationship for quite some time.
But Kourt's behavior since the pregnancy news broke has been very telling, and her sisters were confused as to why she'd immediately jet off with the 22-year-old singer if Scott was, in fact, the father of her baby.
"Her close friends and even her sisters aren't sure anymore!" the source adds.
Justin Bieber and Scott Disick. (Photo Credit: Getty Images)
"A paternity test is the only answer at this point, but it’s the last thing in the world she wants to do,” the source continues. "This whole thing has her stressed out like you wouldn’t believe!”
For more on Kourtney's pregnancy, pick up the latest issue of Life & Style, on newsstands now!