KIM KARDASHIAN claims to be five months pregnant, but a bombshell ENQUIRER investigation suggests the reality diva could be faking her pregnancy in a shocking ploy to net a multimillion-dollar payday and to repair her battered image.

As startling photographs show, Kim’s baby bump seems to change size and position – and some­times even disappear – as the 32-year-old beauty travels around the country and the globe.

A source close to Kim believes the star might have hatched a sensational scheme with her money-hun­gry momager Kris Jenner to fake her pregnancy while secretly having a sur­rogate mom carry a baby for her and her lover Kanye West.

“How convenient is it that Kim got pregnant just as she was making a mad push to wrap up her ongoing divorce from Kris Humphries?” the source said. “Now Kris is claiming the delay in grant­ing a divorce is stressing Kim and the unborn baby. A fake pregnancy cleans up a lot of problems all at once and gar­ners Kim sympathy.

“It also would be an insane coincidence that Kim just so happened to get pregnant soon after she learned the girlfriend of her ex-boyfriend Reggie BushLilit Avagyan – is pregnant.

“Best of all, for someone who’s always cooking up new moneymaking schemes, Kim stands to earn a windfall from her pregnancy.”

Insiders estimate Kim, who is 200 pounds and growing, could earn a whopping $16 million from baby product endorsements, a birth special for the E! network and even a post-birth weight-loss deal for a big-name diet company.

“Momager Kris has to be licking her chops thinking of the money she could potentially bring in by exploiting a Kim K baby, as well as a TV special and a post-birth weight-loss deal with a diet company like Jenny Craig,” a source says.

However, a friend says: “You’ll never see a bloody birth on TV – like the way her sister Kourtney did it. Kim is far too vain to let herself be filmed at such a vulnerable moment.”

Suspicions of a pregnancy hoax have ignited a firestorm of speculation on the Internet that Kim isn’t carrying her rapper beau Kanye’s baby and is instead using a pros­thetic belly insert, just as singer Beyonce was once accused of doing.

“If the pregnancy is fake, Kim has a built-in excuse to let her figure go and gain some weight, enjoying the fattening foods she truly loves.”

Shocking telltale pictures seem to show that Kim is duping her legions of fans – with her belly bump seeming to play here-today, gone-tomorrow.

While The ENQUIRER is not con­vinced Kim is faking her pregnancy, some of her followers are crying foul on online message boards.

One raged: “I am sorry but I don’t think this woman is pregnant! Her bump changes siz­es and it’s not the clothes! One min­ute she is about to burst and the next minute she is flat as a pancake…I guess she will do ANYTHING for attention.”

NOW FANS ARE HAVING A FIELD DAY pointing to additional tip-offs that Kim’s pregnancy could be an outrageous fake, like when she was apparently caught drinking alcohol twice, a strict no-no for moms-to-be.

The first time was during an October taping of “Kourtney & Kim Take Miami,” when Kim appears to be drinking and sister Khloe chimes in: “It’s a girls’ night. Let’s have some drinks. It’s a celebration any time Kim is drinking and hanging out.”

Then, on March 17, Khloe posted a picture on her Instagram account showing Kim swigging what appears to be white wine, while Khloe and brother Rob toast with mixed drinks.

If Kim is involved in a pregnancy sham, it would be one of the most outrageous schemes ever. But the source adds: “I wouldn’t put something as crazy as faking a pregnancy for publicity and financial gain past Kim and her crafty mom. They’d do anything for more fame and money!”