Hilary Duff is a picture perfect pregnant!

The former Disney star, who's expecting a baby boy with hubby Mike Comrie, showed off her flawlessly, fresh face while out running errands in LA.

Hilary just released her novel "Devoted" ... the second book in her trilogy series Elixir. Aside from her new book, Ms. Duff also has plans to release a new album after giving birth.

Looking forward to hearing those new tunes, Hil!