PEOPLE confirmed in August that Prepon and fiancé Ben Foster welcomed their first child, a daughter

By Karen Mizoguchi
September 18, 2017 08:41 PM
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Laura Prepon is getting back into her orange jumpsuit for Netflix.

The actress, 37, shared a makeup-free selfie on Instagram Monday to mark the first day back to work on Orange Is the New Black after welcoming a daughter with fiancé Ben Foster.

PEOPLE confirmed in August that the That ’70s Show alum and Foster — who got engaged in October 2016 — welcomed their first child.

The couple has yet to reveal the name of their little girl.

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“Back at work! @oitnb season 6! #workingmom #herewego #alexvause,” the mother of one captioned her photo.

PEOPLE confirmed Prepon’s baby news in January, just a few months after the engagement news.

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Fans last saw Prepon’s character Alex with her fate at Litchfield Penitentiary up in the air. The fifth season ended in June with 10 women, including Alex and Piper (Taylor Schilling), holding hands and bracing themselves for a SWAT team’s assault after authorities swept the jail several times upon realizing that some inmates were missing.

In February, OITNB was picked up for three more seasons, with season 6 likely returning to Netflix in summer 2018.