Rachel Bilson Celebrates Her 33rd Birthday on Babymoon with Hayden Christensen

Rachel Bilson covers up her baby bump in a loose fitting dress while heading back to her car after walking along a trail on Monday afternoon (August 25) in Ventura, Calif.

The pregnant Hart of Dixie star, who was joined on the outing by her boyfriend Hayden Christensen, turned 33 years old that day.

PHOTOS: Check out the latest pics of Rachel Bilson

Happy birthday, Rachel! We hope you had a great day!

The day before, Rachel and Hayden were spotted heading to a hotel together while enjoying their babymoon before her upcoming due date.

FYI: Rachel is wearing an Autumn Cashmere cardigan