Cobie Smulders and Taran Killam are expecting their second child together.

A rep for The Avengers: Age of Ultron star confirmed to the Los Angeles Times Tuesday that Smulders is pregnant, but declined to share when the baby is due.

The Captain America: The Winter Soldier actress starred as Ted Mosby’s longtime love interest, Robin Scherbatsky, in How I Met Your Mother.

Killam, of Saturday Night Live, had a recurring role on How I Met Your Mother as Gary Blauman. The popular show ended its ninth and final season with a controversial ending in March.

The couple were married in 2012 in a star-studded wedding celebration and celebrated their second anniversary in September.

.@TaranKillam and @CobieSmulders are expecting their second child! Congrats! http://t.co/wjIM7DnWJq via @CBBVips pic.twitter.com/t3s57vHhRS

— People magazine (@peoplemag) October 21, 2014

While she was pregnant with daughter Shaelyn in 2009, producers had their work cut out for them during the show’s fourth season trying to hide her growing belly, as well as that of pregnant costar Alyson Hannigan, from the cameras.

BABY ALERT! @CobieSmulders + @TaranKillam are expecting their second baby together. Congrats on the exciting news! pic.twitter.com/kDZRyxL9Vp

— VH1 Celebrity (@VH1Celebrity) October 22, 2014

Smulders will be back in theaters in May reprising her role as S.H.I.E.L.D. Agent Maria Hill in The Avengers: Age of Ultron. She recently appeared on television’s Marvel’s Agents of S.H.I.E.L.D., ABC’s spin-off series based on the blockbuster movie franchise.

Tonight on @Channel4, Cobie Smulders returns to @MarvelUK #AgentsofSHIELD as Maria Hill. What news will she bring? pic.twitter.com/vNCdkBrKiL

— ABC Studios UK (@ABCStudiosUK) May 16, 2014

She’s also slated to costar in Andrew Bujalski’s Results with Guy Pearce next year.