Leelee Sobieski gave birth to her first child this week, a rep for the starlet confirmed this afternoon.

The Public Enemies actress and her fiancé Adam Kimmel — a menswear designer — welcomed a baby girl in New York City on Wednesday night. Both mom and baby are doing fine, the rep added.

Leelee, 27, announced she was expecting in September. In June, she made the couple’s engagement public, when she showed off an engagement ring at the Hollywood premiere of Public Enemies.

No word on what Leelee and Adam will call the new lady in their lives.