One of the most recent theories comes after photos of a very pregnant Kylie taken during her best friend Jordyn Woods’ birthday party in September went viral this week.

ok so @KylieJenner pregnant pic.twitter.com/Z5ZTByfUhC

— kelly quinn (@klyqn) December 27, 2017

Because Kylie appeared to be sporting a very developed baby bump back in the fall, many Twitter conspiracy theorists believe that she delivered her baby months ago.

Mollies theory on Kylies pregnancy:
After seeing piccys from jordyns birthday party in like sept, ky looks extremely preggo
The vid of ky in the silver dress is from last jan and she looks like she’s in early stages of babyness
(1)

— mol dog (@mollie_watkins) December 28, 2017

So by my calculations, kylie WAS preggo and has already had the baby. She gave birth in October/November and were all now finding out about it and yanno what, if anyone could pull this off it’s a kardashian/Jenner

— mol dog (@mollie_watkins) December 28, 2017

Other conspiracy theorists used the Kar-Jenner family’s annual Christmas card as proof that Kylie and her baby were present during the shoot.

Half of the Christmas card are looking at something THEY’RE LOOKING AT KYLIE JENNER HOLDING THAT BABY IM TELLING U pic.twitter.com/m6G6tORID1

— Call Me By My @ (@NotAgainBen) December 24, 2017

Twitter users didn’t stop there. They offered a few more suggestions as to when and if Kylie Jenner would either confirm her pregnancy or announce the arrival of her baby.

what if kylie jenner makes the announcement on NYE instead? what if she already had the baby? what if we’re all dead? what if

— Rosemary Donahue (@rosadona) December 27, 2017

Kylie jenner has probably given birth to a baby boy who's again probably making more money than you'll ever have in your life 😁😁😁

— Mike Frost (@mykfrost) December 29, 2017

A conspiracy: kylie already had her baby and she too busy breastfeeding to take selfies

— carmen claus🎄🎀🤶🏼 (@CarmenKingy) December 27, 2017

Plot twist Kylie already had her baby

— Han (@Hannah_Anastasi) December 28, 2017

Despite her silence, Kylie isn’t the only Kar-Jenner welcoming a new addition. Kylie’s big sis Kim Kardashian West  recently revealed that she and hubby Kanye West were expecting their third child through a surrogate. Khloe Kardashian took a page out of Kylie’s book and vanished for months before confirming that she was expecting her first child with NBA star Tristan Thompson.