KRIS HUMPHRIES: I WANT PROOF THAT BABY’S MINE

Kris Humphries finally got the news from ex-GF Myla Sinnaj -- the news TMZ broke -- that's she says she's 3 months pregnant and claims he's the dad -- but sources close to Kris tell us ... he's not convinced he's he daddy.  According to our sources, Kris didn't express his doubts to Myla ... but we're told he'll take a paternity test for proof positive.