The fomer Golden Globe nominee, 31, was spotted with walking around Hawaii sporting a baby bump earlier this year, but never formally announced her pregnancy. The immensely-private star gave birth on the island last week, according to reports.
It is Lilly’s first baby, with boyfriend Norman Kali, an ex-Lost production assistant. She dated her Lost co-star Dominic Monaghan for five years before the couple called it quits in 2009.