May 31, 2013 04:30 PM

Paul Drinkwater/NBC/AP

From marriage to the baby carriage, Lennon Parham and Jessica St. Clair sure do take their former Best Friends Forever roles seriously — even in the real world.

After tying the knot within one week of each other’s nuptials — Parham, 36, wed Javier Guzman while St. Clair, 35, married Dan O’Brien in July 2006 — the two in-sync stars discovered they could add pregnancy pals to their long list of memorable BFF moments.

Parham and Guzman crossed the pending parenthood finish line first when they welcomed daughter Saraya on April 21, their rep confirms to PEOPLE exclusively.

And come fall St. Clair — whose due date is Oct. 1 — and her playwright husband O’Brien will welcome their own baby girl to their family, the rep adds.

But plunging into parenthood together isn’t the end of the road for the dynamite duo.

In addition to cowriting and executive producing their upcoming series, Parham and St. Clair will costar on their new show Playing House, set to debut in 2014 on USA.

— Anya Leon

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