Kylie has not addressed the reports yet, but she has been hiding her midsection in her posts on social media.
Another source revealed that Kylie does not want to be photographed.
"Last, but definitely not least.my little babies!" she wrote.
The insider said: "Kylie prefers to stay home". She has family and friends come to her house instead so she has company.
It's claimed Kylie will not announce her pregnancy until she gives birth and will purposely avoid stepping out into the spotlight in a bid to 'focus on her health and happiness'.
'She's very excited about the baby, though, ' they added.
Kris now has six grandchildren - Mason, Penelope, Reign, North, Saint, and Dream - so why were there three extra pairs?
We can assume that the seventh set of pajamas is for Kim Kardashian's baby girl, whom she's expecting via surrogate.
North most likely has her name on one more set that can't be seen in the snap, meaning there are three more sets which could belong to the babies on the way. What's more, according to a source, Kylie won't be engaging in any baby talk until the reported baby is actually here. There is no word when or how she will make the announcement, but she's apparently ready to do so.