Drew Barrymore is reportedly converting to Judaism for her fiancé Will Kopelman.

The 37-year-old 'Going the Distance' star - who is also expecting her first baby with the art consultant - is believed to want to complete the change in time for their wedding.

A source said: ''She's taking classes now on converting. She's doing it for Will and his family,'' before adding the couple plans to wed in an ''intimate'' Jewish ceremony in the next few months.

Will, 33, popped the question over Christmas but a second source insists neither knew about the baby at that point.

The insider told Life & Style magazine: ''Drew didn't know she was pregnant when Will proposed.''

Meanwhile, according to Star magazine the actress - who has previously been married to bar owner Jeremy Thomas and comedian Tom Green - wants to say ''I do'' before their little one arrives.

A source said: ''Drew is over the moon about the baby, but she wants a husband too.''

''Although she's always been a bit of a wild child, at heart she's old-fashioned. She wants to pull together the perfect wedding in the next few months. She can't wait to be Mrs. Kopelman.''