The 32-year-old "7th Heaven" alum was spotted Wednesday afternoon, Oct. 22, at a chiropractor's office in Los Angeles, and an eyewitness told HipHollywood that they overheard a doctor talking to the actress about being with child.
On the same day, Biel was photographed exiting the American Party Store on Vine in West Hollywood. Making sure not to do any heavy lifting, Biel's business partner and stylist Estee Stanley instead carried a big disco mirror ball for the actress as they left the store together, Daily Mail reported.
In the photos, the Ely, Minnesota-born actress is seen wearing a pair of tight-fitting jeans and a chunky knitted scarf - probably in an attempt to cover up her stomach. However, the actress' unbuttoned shirt revealed a mystery bump as she went back home.
Biel and her 33-year-old singer-actor husband, who tied the knot in October 2012 at the Borgo Egnazia resort in Fasano, Italy, have both been vocal in the past about their plans to start a family together.
During the December 2013 Hollywood premiere of her drama thriller indie film "The Truth About Emanuel," Biel was asked by E! News if she wants to have kids with the "Suit &Tie" hitmaker sooner or later. And in response, she said: "I don't know. I'm not quite sure about sooner or later, but definitely at some point."
In May 2013, Timberlake said that he has not ruled out the idea of having children.
''I'm not against the idea at all, but I think I still have some time ahead of me," he told Ok! magazine, as quoted by EntertainmentWise. Let's leave it to fate. Life didn't change overnight. Marriage, family - it's all part of the normal steps you take when you reach your thirties."
"She's brought me stability and an inner force," he said of Biel. "The most important thing for me is that we're able to communicate so well and talk about absolutely everything. It's beautiful to have that kind of closeness and understanding."