There's one telling clue, according to experts.
Check out their growing baby bumps.
Five for five?
Watch the emotional video.
She has some explaining to do.
From oversized sweatshirts to having your sisters block you in a picture.
What to know about Kim, Khloé, and Kylie's buns in the oven.
She faced a lot of backlash after revealing she's six months along.
"My greatest dream realized! We are having a baby!"