Drew Barrymore wants to wed before she gives birth.

The 37-year-old Going the Distance actress - who is expecting her first child with fiancé Will Kopelman - reportedly wants to say "I Do" this summer before their little one arrives.

"She wants to marry Will fast. Not just because she's pregnant but because she loves him and wants to be married before the baby is born. Drew's checking out dresses that will fit her then," a source told Life&Style.

Having been previously been married to comedian Tom Green and British bar owner Jeremy Thomas, the former child star - who entered rehab aged just 13 - admits she is enjoying the "stability" of her relationship with Will: "It's just the best! We go on group trips and spend holidays together - there's a lot of love! And that is really nice and very different from the way I grew up, which was more unstable and inconsistent, with a lot of highs and lows. It's funny, when I was younger, I used to say I'd hate a flat line - that I want the ups and downs, the roller coaster. But I'm actually really enjoying the flat line."