We just caught up with Rachel Bilson at the CW Upfronts last week in New York and it looks like she was keeping a little secret from us because US Weekly just confirmed the Hart of Dixie star is pregnant! Rachel and her boyfriend of 7 years, Hayden Christensen, are expecting their first child together, according to the mag. A source tells the mag, "They've both talked about this for awhile and are so excited." We're excited too! Congrats to the happy couple!