The Billy Elliot star and the True Blood actress welcomed a baby boy on Monday (29Jul13).
Bell, who walked down the aisle with Wood last October (12), took to Twitter.com in the hours after their new arrival came into the world and paid tribute to his partner's strength.
He writes, "Wow! What a day. Evan you are my warrior! You never cease to amaze. Thank you for birthing our son so naturally & peacefully. You did it!"