Drew Barrymore is officially off the market!

The pregnant Never Been Kissed star donned a custom made Chanel couture wedding gown to marry Will Kopelman (his dad is the CEO of Chanel), on Saturday evening at an intimate Jewish ceremony in the backyard of the actress' Montecito, Calif. estate -- and we have the exclusive pix!

The couple invited family and some of their closest friends, including Cameron Diaz, who was seen helping the 37-year-old bride at her final fitting early this week, Steven Spielberg and Kate Capshaw, Reese Witherspoon and Jim Toth, Busy Phillips and Jimmy Fallon.

In keeping with the groom's Jewish faith, the couple was married under a custom-made chuppah, and the ceremony was performed by Kopelman's rabbi. The backyard had hippie-chic teepees and floral arrangements included "hydrangeas, small irises, cream and pink roses and lavender lilies," according to Us Weekly.

The intimate backyard garden wedding was designed by celebrity wedding planners Yifat Oren and and Stefanie Cove, who also planned Reese Witherspoon's outdoor nuptials at her ranch in Ojai, Calif., last March.

Barrymore confessed to Ellen DeGeneres in February that she can't wait to be a part of Kopelman's family. "He has this incredible family. I am as in love with his family as I am with him. Which is an extraordinary sort of gift. You never take that for granted...It really is an absolute blessing. I feel very lucky. They’re incredible people."