12/17/2009 at 04:05 PM EST
It's the perfect present – Leelee Sobieski and her fashion designer fiancé Adam Kimmel have welcomed a baby girl.
The Emmy-nominated actress delivered a daughter, Louisanna Ray Kimmel, late Wednesday evening in New York City, Sobieski's rep confirms to PEOPLE.
The couple – who became engaged
in June and announced
the pregnancy in September – are still planning to wed.
"We have pushed that back," the actress said
about her nuptials. "We are going to maybe do it in the spring."
Joan of Arc
star Sobieski, 27, most recently appeared in this summer's Public Enemies
alongside Johnny Depp
; She can next be seen in The Mad Cow
opposite Jeffrey Tambor.
Reporting by KRISTEN MASCIA