Reese Witherspoon in Brentwood, Calif. (Inset: her rings)
X 17 (2)
04/01/2011 at 01:30 PM EDT
In the first shot of Reese Witherspoon
since she and agent Jim Toth tied the knot
at her Ojai, Calif., estate on March 26, the Walk the Line
Oscar winner is getting back into the daily grind, heading for a workout
Thursday at her Brentwood, Calif., gym.
On her ring finger is the large platinum wedding band that now goes with 4-carat diamond engagement ring she received from Toth
Witherspoon, 35, and Toth, 40, quietly began dating
in December 2009 and, by the following March, headed to Ojai to celebrate her birthday and "looked like a couple in love," an observer told PEOPLE.
– Stephen M. Silverman
For exclusive photos of Reese's wedding – and all the details of her emotional, joyful ceremony – pick up the next issue of PEOPLE, on newsstands Monday!