We're gonna go ahead and say it:
Sure, no official announcement has been made, but check out the only Thanksgiving photo that Jill posted to Instagram, and tell us she doesn't look like she's trying to hide something:
There's something unusual going on here, and we're not talking about Derick's used car dealer hair.
The other couple (the Dillards spent the holiday with Derick's side of the family) look perfectly natural, but Jill has a tangle of arms in front of her abdomen, like Doc Ock from Spider-Man is trying to hide a paunch.
Bear in mind that the latest round of Jill pregnancy rumors has been circulating for weeks now, and the mother of one has not only refused to respond to them, she's all but stopped posting pics of herself on social media.
When we do get a pic, it's of Jill standing behind a freakin' M.C. Escher painting of entangled limbs.
And why would she choose to hide the fact that she's knocked up?
We have no idea, but it seems to be the Duggar M.O. these days.
Over the summer, we learned that Jessa Duggar is pregnant with her second, but only after several months of subterfuge.
Jessa even went so far as to post old photos of herself on Instagram so as to throw fans off the trail.
Clearly Jill hasn't gone quite that far, but she's still making an effort to hide her burgeoning bump.
Our best guess is that she plans to make the reveal on her family's reality show.
Counting On Season 3 is filming now, and the Duggars are doing everything they can to avoid cancelation these days.
Rushing this one through post-production so that fans can find out about Jill's "big secret" on the air instead of Instagram would help to ensure big season premiere numbers.
It's not easy being a reality star in the age of social media.
Just kidding, they still get paid just for living out their lives on camera.