Alyson Hannigan welcomes a baby girl

Alyson Hannigan and Alexis Denisof arrive at the 2012 People's Choice Awards on Jan. 11, 2012, in Los Angeles.
(CBS News) Alyson Hannigan and her husband, actor Alexis Denisof, are now parents to a second daughter.

Pictures: Celebrity babies

The baby girl, Keeva Jane Denisof, was born on May 23, Hannigan's rep told Us Weekly. "They are all doing well," the rep said.

She joins the couple's 3-year-old daughter Satyana.

Hannigan tweeted the pregnancy news in December, writing, "Yes, I am pregnant! This time it is NOT a food baby, We are beyond happy!"

The "How I Met Your Mother" star told Us Weekly back in 2010, "[Being a mother] has changed me in every way because my life is so much greater. It filled a void I never knew was there - it's the most amazing experience of my life. I just feel so blessed to get to be on this journey, to be a mommy."

Hannigan, 38, and Denisof, 46, have been married since 2003.

Earlier this year, Hannigan appeared on the big screen in "American Reunion."

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