Countless false rumors have had Khloe Kardashian briefly pregnant, but even though she keeps shooting them down, it's not as if she isn't trying.
"If it happens, it happens," she told the magazine. "It takes time, I guess... I don't know what the problem is."
Kardashian says more in the new issue, now on newsstands -- for a preview, click over to Us Magazine.
HuffPost Entertainment is your one-stop shop for celebrity news, hilarious late-night bits, industry and awards coverage and more — sent right to your inbox six days a week. Learn more