PHILADELPHIA (CW PHILLY) — After announcing their rekindled relationship in December, Hilary Duff and boyfriend Matthew Koma have revealed they’re expecting a baby girl.

Both Duff and Koma shared the exciting news to Instagram with a photo of the couple that shows off Duff’s baby bump. Duff and Koma also dated in the past.

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This will be Duff’s second child. Her son Luca was born in in 2012 during her marriage to hockey player Mike Comrie.

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This announcement also follows the birth of Haylie Duff’s daughter, Lulu Gray Rosenberg, born on Thursday.