NORMAN SCOTT/StarTraks 1 / 21
NORMAN SCOTT/StarTraks 1 / 21

Here comes the bride ... in June!

Pregnant Drew Barrymore, 37, picked a summer date for her California vows to art consultant Will Kopelman, 34, "because she wants to get married before the baby comes, but doesn't want to be huge," a pal tells the new issue of Us Weekly (out now).

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Kids will still play a role in the ceremony, though. "She'll likely put his nieces and nephew in the wedding party," says a source.

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After taking their romance public in February 2011, Us exclusively confirmed that Kopelman popped the question in Sun Valley, Idaho over the holidays, giving Barrymore a radiant-cut Graff diamond just under 4 carats.

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The "Big Miracle" actress and her beau recently returned from Paris, where she chose a Chanel wedding dress. (Kopelman's dad is the former head of the fashion house.) "Drew met with his staff and had the first of many fittings," the pal says.

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