While she is waiting to share images of her newborn son with the world, the singer and actress gave fans a glimpse of her first child's feet.
The star, who gave birth to the boy last month, posted the image on the micro-blogging website with a short and sweet caption.
She wrote: "My favourite little feet."
Duff has also openly made fun of her increased frame via the social networking channel.
The 24-year-old tweeted: "20 minutes on the elliptical seems like an eternity!!! What the hell..."
When a follower congratulated her on looking good shortly after giving birth, Duff - who is married to sportsman Mike Comrie - wrote: "You should have seen what I looked like last week.
"Eek surprised I still have a husband!! It was time to throw them heels on ;) guurl."
> Hilary Duff: 'Being a parent is no joke'