Lauren displayed her enviably tiny waist and peachy posterior, proving her critics wrong with her toned physique.

If Khloe Kardashian isn't pregnant, then she surely would have said something by now.

However it seems the reality star is determined to keep her fans guessing, posting a picture of herself without any sign of a bump on Monday.

The image - a selfie showing her working out in a sports bra - was posted to her Snapchat by the star.

But while at first glance it seemed the shot cast doubts on the widely reported news that Khloe is expecting, all is not as it seems.

It seems instead of a new image, the shot is instead a throwback - with the post promoting the 33-year-old's blog, Khloe With A K.

She captioned the image 'The best workout for your sign' and linked to a new blog post.