Alyson Hannigan expecting her first child

Oct 23, 2008 at 12:05 p.m. ET

Alyson Hannigan is pregnant with her first child. The How I Met Your Mother star announced October 23 that she and actor husband Alexis Denisof are awaiting their first baby this spring.

Alyson Hannigan is a bit happy about baby! Congrats!

Hannigan met Denisof on the set of the '90s hit Buffy The Vampire Slayer television series that starred Sarah Michelle Gellar.

When Denisof is telling his own How I Met Your Mother story to their new child, it it goes a tad beyond the usual met on the set tale. Both were dating other people when they worked together on Buffy. Hannigan had a personal mantra: don't date actors she's working with!

Well, Hannigan and Denisof's relationships fell apart, he was moved to the Buffy spin-off Angel and all's clear to date.

Six years later, a baby is on the way. How Hannigan's pregnancy will be worked into her character's storyline on How I Met Your Mother is unknown, but given the premise of the show…it should prove interesting!

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