Khloe Kardashian may finally be expecting a baby.

The reality star has tried for years to have a child, but her fertility problems have been well-documented. She's also had her issues in finding stable enough boyfriend to have a baby with.

Kardashian, 31, is pregnant, according to HollywoodLife.com, and, though details are sketchy, there are several possibilities as to who the father could be.

Here's a ranking of the probability of the reality star's high-profile exes being the father to her baby.

4) James Harden

The Rockets guard is the least likely candidate since he and Kardashian split up many months ago. The former "Kocktails with Khloe" host revealed on her show that she and Harden broke up because he pushed for a monogamous relationship and then cheated on her. Out of all of her exes, Harden is the biggest longshot.

3) Odell Beckham Jr.

Kardashian reportedly was getting hot and heavy with the Giants wide receiver during rapper Drake's Memorial Day party, but it's nearly impossibe for him to be the father unless they've had a longer-term relationship than they've led on. For what it's worth, Kardashian downplayed their chemistry, noting on Twitter that it was just a drunken flirtation.

2) French Montana

The rapper is certainly a wild-card in all of this since he remains close to the reality star. The pair dated back in 2014, but split up in 2015. Despite the couple breaking up, Kardashian has been spotted out and about with Montana on multiple occasions, so their relationship didn't totally crumble. It's possible they are more than just friends.

1) Lamar Odom

Out of all of her flames, the two-time NBA champion appears to be the most logical choice. Despite rumors that the coupe is getting divorced and Kardashian claiming she didn't have a spark with him anymore, the two seem destined to be in each other's lives forever.

With Odom completely recovering from his near-fatal overdose in October, he and Kardashian have appeared inseparable, so it's possible they're closer than currently believed. With the Kardashians always looking for more storylines for their reality show, the divorce could be a publicity stunt -- though their were reports the divorce is ongoing because of her desire to have kids.

It's also possible Kardashian went through other means to have a baby and that none of the above are the father.

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