Fashion designer Jason Bleick, the actress’ boyfriend of less than a year, is the father.
A source tells Star magazine, “Selma and Jason are ecstatic… Selma never thought she could be this happy.”
No details of the due date have been disclosed.
Blair and Bleick have no immediate plans to wed. Blair was married to rock legend Frank Zappa’s son Ahmet from 2004 to 2006.
The actress joins a growing list of Hollywood stars set to become first-time parents in 2011 – Natalie Portman, Owen Wilson and Marion Cotillard have all recently announced baby news.
Her ex-husband, Zappa, welcomed his first baby with stylist wife Shana Muldoon last month. Little Halo Violetta was born on 28 December (10).