Though it has become increasingly obvious that Reese Witherspoon is pregnant with her third child, she has managed to stay quiet about her growing baby bump -- until now, at least.

The 36-year-old star finally made mention of her swelling belly Saturday night, The Chicago Sun-Times is reporting. When complimented on her appearance by reporters, Witherspoon replied, "Thanks, but frankly I’m feeling very round tonight.”

In March, reports first surfaced that the actress and her husband, Jim Toth, were expecting a little one, with UsWeekly confirming the happy news via sources close to the couple. Though photographs of Witherpoon's obvious baby bump seemed to backup the rumors, the couple stayed mum.

Witherspoon walked the red carpet at the event Saturday -- sans her hubby -- answering questions about the film she is currently working on with Colin Firth, "Devil's Knot." When asked what's next, she adorably responded, “And, after I finish that, I’m going to take a little time off — and go have a baby.”

Witherspoon was in town accepting a Renaissance Award at the summer gala to benefit the Gene Siskel Film Center of the School of the Art Institute of Chicago. Take a look at the mommy-to-be below.

PHOTO:
reese witherspoon pregnant

Check out some other stars joining Reese Witherspoon in the baby boom.
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  • Jessica Simpson

    Jessica announced that <a href="http://www.huffingtonpost.com/2012/12/25/jessica-simpson-pregnant-baby-maxwell-photo_n_2362558.html">she's expecting her second baby</a> on Christmas. She and fiance Eric Johnson have a seven-month-old daughter Maxwell.

  • Kate Middleton

    The Duchess of Cambridge is <em>officially</em> expecting her first child with Prince William! The mom-to-be is <a href="http://www.huffingtonpost.com/2012/12/03/hyperemesis-gravidarum-kate-middleton-pregnant_n_2234099.html">suffering from Hyperemesis Gravidarium</a>, a rare maternity condition which brings on severe nausea, vomiting, weight loss, dehydration, lightheadedness and fainting.

  • Fergie & Josh Duhamel

    The couple announced their baby news on Twitter Feb. 18, after weeks of speculation.

  • Penelope Cruz

    The actress is expecting her second child with husband Javier Bardem. The couple already has a 2-year-old son Leo.

  • Evan Rachel Wood

    The actress is <a href="http://www.huffingtonpost.com/2013/01/11/evan-rachel-wood-pregnant-jamie-bell_n_2456954.html">expecting a baby</a> with her new husband Jamie Bell.

  • CaCee Cobb & Donald Faison

    Jessica Simpson's best friend Cacee Cobb and new husband Donald Faison are expecting their first child together. The couple of six years married in December in the backyard of Faison’s "Scrubs" co-star Zach Braff.

  • Tracy Morgan

    The actor and comedian and his model fiancée Megan Wollover are expecting their first child together early this summer.

  • Halle Berry

    Berry is expecting her first child -- a boy -- with fiance Olivier Martinez. She is already the proud mommy of 5-year-old daughter, Nahla.

  • Jamie-Lynn Sigler

    Sigler and her brand new fiance Cutter Dykstra are expecting their first child together.

  • Hilaria & Alec Baldwin

    The couple announced that <a href="http://celebritybabies.people.com/2013/02/12/alec-baldwin-hilaria-baldwin-pregnant-expecting-baby/">they're expecting their first child</a> together. Alec already has a 17-year-old daughter, Ireland, with ex Kim Basinger.

  • Mario Lopez & Courtney Mazza

    The newlyweds are expecting their second child, Mario revealed. “I am the happiest father in the world," <a href="http://www.extratv.com/2013/02/19/mario-and-courtney-lopez-expecting-baby-no-2/">he told Extra</a>. "We cannot wait to welcome baby Lopez number two into our lives.”

  • Mark-Paul Gosselaar

    The "Saved by the Bell" star and his wife Catriona McGinn are expecting their first child together this September. Gosselaar is already a dad to two kids -- son Michael, 9, and daughter Ava, 6 -- with ex-wife Lisa Ann Russell.

  • Jamie Anne and Marshall Allman

    "The Killing" star and the "True Blood" actor are expecting twins in the spring of 2013.

  • Busy Philipps

    The "Cougar Town" star is <a href="http://www.huffingtonpost.com/2012/12/10/busy-philipps-pregnant-cougar-town-star-expecting-second-child_n_2272754.html">expecting her second child</a> with husband Marc Silverstein.

  • Heather Morris

    According to Us Weekly, Heather Morris, 26, and longtime beau Taylor Hubbell are expecting their first child.

  • Ivanka Trump

    Trump and her husband Jared Kushner <a href="http://www.huffingtonpost.com/2013/04/11/ivanka-trump-pregnant-second_n_3060630.html?utm_hp_ref=celebrity" target="_blank">are expecting their second child</a> this fall.

  • Sarah Wright

    Wright and her husband Eric Christian Olsen are expecting a baby boy in August, <a href="http://celebritybabies.people.com/2013/04/17/eric-christian-olsen-expecting-son/" target="_blank">People confirms</a>.

  • Kyla Weber

    Vince Vaughn's wife <a href="http://www.huffingtonpost.com/2013/04/27/vince-vaughn-baby-actor-wife_n_3169237.html?utm_hp_ref=celebrity" target="_blank">is expecting the couple's second child</a> in August. The pair already has a daughter Locklyn.

  • Jaime King

    The "Hart of Dixie" star is expecting her first child with husband Kyle Newman.

  • Rachel Leigh Cook

    The "She's All That" star and her husband Daniel Gillies are expecting their first child this fall.

  • Monica

    Monica is expecting her first child with husband Shannon Brown, but she's already mom to sons Rocko, who turns 8 later this month, and Romelo Montez, 5.

  • Autumn Reeser

    The actress is expecting her second child.

  • Jennifer Love Hewitt

    The "Client List" actress and her boyfriend, Brian Hallisay, are expecting a baby.

  • Kate Winslet

    Winslet and her husband Ned Rocknroll are expecting their first child together.

  • Kim Zolciak

    The "Real Housewife" is expecting her third child with husband Kroy Biermann.

  • Stephen Amell

    The "Arrow" star and his wife Cassandra Jean are expecting their first child together.