Keri Russell: Pregnant with Co-Star's Baby!

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Keri Russell and Matthew Rhys don't just star on what many consider to be the best show on television.

They are also about to star in the most important roles of their lives: mother and father.

Keri Russell and Matthew Rhys

Because Russell is pregnant!!!!

“Keri is more than four months along,” an insider tells Us Weekly of The Americans actress.

Already a parent to a daughter named River (eight years old) and another daughter named Willa (four years old) with ex-husband Shane Deary, Russell will reportedly give birth this spring.

A rep for Russell could not be reached for comment, but someone close to Rhys tells the tabloid that this news is "so exciting for them!"

Russell and Rhys went public with their romance in April of 2014.

They are now filming the FX drama’s fourth season and you can watch The Americans online via our friends at TV Fanatic.

"They are always together and love roaming around New York,” a second source tells Us Weekly.

“Matthew is really in love. They feel they should have always been together.”

We send our very best wishes to the couple and can't wait to meet their precious bundle of joy!

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