Did we all really just hear that?! Was that Kylie Jenner in the background of Khloe Kardashian's Instagram Story video saying "Well, I'm pregnant?" Sure sounded like it!

Khlo posted this clip of her 35th birthday bash, gushing over all the sweets and finally, a bottle of champagne, when Ky can be heard off-camera saying she's pregnant!!! Is this a Kardashian trick? An Easter egg? A fun way of announcing to astute fans that she's pregnant with her second child with Travis Scott???

Enquiring minds want to know ... so Kylie, you better address this rumor ASAP!