(Cover) - EN Showbiz - Reese Witherspoon has sparked speculation that she may be pregnant after relaxing her fitness regime.

The Hollywood actress has been surrounded by pregnancy rumours since her wedding to Jim Toth three months ago.

Sources have now revealed the Oscar-winning actress, 35, might already be expecting her third child.

Reese wore a shirt over her bikini during a family outing in Malibu over the Fourth of July weekend, giving rise to speculation that she might have conceived.

"Reese may be pregnant already. Her stomach isn't washboard flat and people have definitely noticed," an insider told the US version of OK! Magazine. "She's relaxed her exercise routine a lot Reese typically hits the pavement for a long run every morning."

Reese already has daughter Ava, 11, and seven-year-old son Deacon with her ex-husband Ryan Phillippe, and is said to be keen to add to her brood.

Jim would also love to have a baby, with the pair thought to be trying to fall pregnant at the moment.

"It's no secret that Reese wants to have children with Jim," the insider explained. "They have been trying for some time now. They are already a wonderful family the only thing missing is a new baby."

It was reported recently that Reese and Jim were praying nightly that the stunning star falls pregnant. The pair regularly attend church with their family and were reportedly hoping they will be blessed with a baby before long.

"Instead of trying IVF, they're turned to God. They say a prayer every night before bed in hopes of conceiving," a source told In Touch Weekly. (C) Cover Media