Sure, she’s moved on to a new show, “How I Met Your Mother,” but to me she’ll always be Willow from “Buffy.” Redheaded-turned-brunette comic actress Alyson Hannigan, who rose to fame in the “American Pie” movies as that nerdy but naughty girl from band camp, is expecting her first child with husband Alexis Denisof. No word on whether Alyson’s pregnancy will be written into the sitcom.

Alyson Hannigan’s husband has a little less than nine months to perfect his own How I Met Your Mother story.

The sitcom star and her hubby of five years, actor Alexis Denisof, are expecting their first child together, Hannigan’s rep, Megan Moss, told People.

The baby, whose gender has not been revealed, is due this spring.

Hannigan’s CBS show is currently in production, though it’s unclear if her pregnancy will be written into the storyline.

The 34-year-old Hannigan and the 42-year-old Denisof met when the actor joined the cast of the actress’ last cult gig, Buffy the Vampire Slayer, back in 1999.

[From E!Online]

Congrats to Alyson – I am sure she will be just as adorable with a belly bump. I do wonder how the pregnancy will fit the concept of the show, since the plot is told in reverse – but if the writers can find a way to make Britney Spears seem believable as a telephone receptionist, I’m sure they can come up with something.

Alyson Hanigan and Alexis Desinof are shown at the CBS Comedies Season Premiere Party on 9/17/08. Credit: Chris Hatcher / PR Photos