As for the father, Khloeâ€™s â€œin no doubt James is the dad, because she wasnâ€™t sleeping with anyone else around the time she must have conceivedâ€, the source says, referring to KoKoâ€™s current beau, NBA star James Harden.
Of course, clucky Khloe is beside herself, and her happiness couldnâ€™t be more deserved! Since first meeting estranged husband Lamar Odom in 2009, sheâ€™s been desperate to start a family.
â€œIâ€™ve always wanted to have kids, I do think I would be a great mum,â€ sheâ€™s previously said.
But with Lamar, 36, still in hospital after his near-fatal overdose at a Nevada brothel in October, the news is undoubtedly bittersweet.
â€œOn one hand sheâ€™s thrilled because sheâ€™s dreamt of hearing this for so many years and is convinced James will make a fantastic father,â€ says the insider. â€œBut she knows Lamar is going to be devastated. Itâ€™ll be really tough on the poor guy, which is why sheâ€™s kept it secret this long.â€
But, knowing what a happy future they have ahead of them, James, 26, has been nothing but supportive ever since a distraught Khloe rushed to be by Lamarâ€™s bedside in October.
â€œHeâ€™s been super respectful, holding her hand throughout the Lamar nightmare and understanding that after Lamarâ€™s overdose, she couldnâ€™t go public for a few months,â€ says the source. â€œBut now sheâ€™s ready… once sheâ€™s spoken to Lamar.â€