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Rosie O'Donnell and wife welcome baby girl

Bruce Glikas / FilmMagic

Rosie O'Donnell and her Michelle Rounds.

Rosie O'Donnell and her wife Michelle Rounds welcomed a new baby girl into the family Wednesday. O'Donnell made the announcement via an Instagram photo of herself, Rounds and their new baby with the caption, "we r thrilled to announce the arrival of r daughter Dakota - #withloveandthanks- AMEN."

It's a bright point in a difficult year for O'Donnell. She announced in October that she had suffered a heart attack in August, and that Rounds in June was diagnosed with desmoid tumors. Rounds' diagnosis was what prompted the couple, together since September 2011, to marry in a private ceremony.

"We married in private before her surgery, just the two of us," O'Donnell said at the time.

In addition to new daughter Dakota, O'Donnell has four other children -- Parker, Chelsea, Blake, and Vivienne -- who she shares with her ex Kelli Carpenter.