Alyson Hannigan and husband Alexis Denisof announced today that their family has a new addition

Hannigan and Denisof also have a 3-year-old daughter named Satyana, and Hannigan has been vocal about how much she enjoys being a mom.

"[Motherhood] has changed me in every way because my life is so much greater," the actress told Us Weekly back in 2010. "It filled a void I never knew was there. It's the most amazing experience of my life." Looks like Hannigan and Denisof are in store for even more happiness with the arrival of Keeva Jane. The happy couple has been married since 2003.

Alyson Hannigan and husband Alexis Denisof announced today that their family has a new addition. The How I Met Your Mother star gave birth to her second daughter back on May 23, but the couple kept it under wraps so they could privately celebrate the arrival of Keeva Jane Denisof.

Many wondered what was going on with Hannigan, who unexpectedly dropped off the social media map a few weeks back. Now her absence makes sense. Hannigan returned to Twitter Tuesday with a picture of little Keeva Jane's hand.