Selma Blair has given birth to a baby boy.

The 39-year-old actress and her partner Jason Bleick welcomed son Arthur Saint Bleick into the world yesterday (25.07.11) - 18 days past her due date - her representative has confirmed.

Selma Blair is pregnant with her first child.

The 38-year-old actress - who has been dating clothing designer Jason Bleick for the past year after meeting while working alongside one another on the EVER fashion line - is said to be "ecstatic" about the couple's impending new arrival.

The "Cruel Intentions" actress ended her relationship with model-and-actor Matthew Felker while filming her latest movie "Hellboy II: The Golden Army".