It’ll Be a Girl for Dave and Odette Annable

06/21/2015 at 03:00 PM ET

Dave Annable Odette Annable Expecting Daughter
Michael Simon/StarTraks

It’ll be a bouncing baby girl for Dave Annable and his wife, Astronaut Wives Club star Odette.

The couple celebrated Father’s Day by sharing the sex of their first child on Instagram.

The former Brothers and Sisters star, 35, teased the big reveal on Saturday, posting an image of a chalkboard tally where party guests could share their vote for boy or girl.

“Who ya got? #teamboy or #teamgirl? #babyannable. Gonna post the gender reveal video tomorrow, for my first #fathersday,” the actor teased.

Later, Annable shared a still photo from the moment of truth, where he and Odette, 30, were poised and ready to pop the black balloons containing the baby’s sex.

“Almost popped the damn thing getting it out of the car,” Annable wrote. “Try to explain that to a pregnant Cuban.”

In the final video, the couple burst the dark balloons and pink confetti flies out.

“One of the most special moments of our life,” the actor wrote, adding, “I was so confused for a second. Thought I saw both colors of confetti. Nope. #babyannable.”

In the video, Annable appears flustered before someone screams, “It’s a girl!”

The parents-to-be, who were married in 2010, first announced they were expecting on Mother’s Day.

“There’s got to be some sort of word for beyond excited,” Dave, who will star on NBC’s Heartbreaker this fall, told PEOPLE earlier this month. “That’s where we are. It just feels right. It’s what life’s about.”

— Lindsay Kimble

Share this story:

Your reaction:

Add A Comment

PEOPLE.com reserves the right to remove comments at their discretion.

Showing 7 comments

DaisyMoon on

That’s adorable…really very sweet.

(Now if there could possibly be a “Brothers & Sisters” reunion show…THAT would be perfect)

Cary Black on

What an adorable way to reveal the gender of their impending arrival.

Anonymous on

So happy for them to have a girl.

Kay on

I see what he means, I thought I saw both colors too! So adorable, they really seem like a sweet, very much in love couple.

Dre on

He started crying!! Gah. They’re so adorable.

len on

sorry but you Americans have a party for everything. Don’t you do anything in private???

Zol on

Good to hear its a girl for them.