Alyssa Milano: "My Heart Has Tripled in Size" Since Giving Birth
He's the boss of her heart!
Alyssa Milano and husband David Bugliari officially became parents on Tuesday morning, welcoming son Milo Thomas.
And the New Year's Eve actress, 38, re-emerged on her beloved Twitter after the big news hit to proclaim her gratitude -- and her joy.
"Thank you for all the well wishes for my son Milo," Milano wrote. "My heart has tripled in size. I love him more than all the leaves on all the trees."
An insider tells Us Weekly Milano was in labor for 12 hours before Milo arrived at 9:27 a.m., weighing 7 pounds and measuring 19 inches long.
It's the first child for Milano and agent Bugliari, who wed in August 2009.
The couple hosted a baseball-themed baby shower Aug. 14 at L.A.'s Dodger Stadium with such boldfaced attendees as Holly Robinson Peete, Colin Hanks and Twitter founder Jack Dorsey.
Real 'RHOC' Dish
"Real Housewives of OC" star Shannon Beador dishes about her family, her relationship with Vicki Gunvalson and what to expect from the reunion!Watch Video »
Fall's Best Looks
New fashion trends are here! Take a look at celebrities rocking fall's best looks so far.Watch Video »
Diva Double Date
Beyonce and Alicia Keys double date with their famous hubbies on today's Celebs Gone Social.Watch Video »
Shailene Woodley and the stars of "Divergent" chat phobias and on-set injuries at the film's world premiere.Watch Video »
Kaley Cuoco spends time with friends and family -- and lots of horses! -- in the wake of her breakup on this week's Celebs Gone Social.Watch Video »
Tats for Love
From Heidi Klum and Seal to Ryan Sweeting and Kaley Cuoco, see which stars got tattoos for love.Watch Video »