The Heroes star went abroad with writer and actor Hayes MacArthur. The pair got married under a year ago.
According to Yahoo, the 34-year-old said: "It was a very private time for me and my husband and something that I just wasn't ready to share, so we actually left the country for a while.
"This was something that I wasn't ready to share yet. So we came back from Europe, and I said to my husband, 'I just want to go to lunch with my girlfriends. I just want to live my life'. I was four months [pregnant] and it was just time to start living my life."
The baby is due in the winter.
