Reese Witherspoon and Jim Toth with son Deacon Phillippe
05/09/2011 at 06:00 PM EDT
has gone from newly wed to newly injured.
As the Water for Elephants
star, 35, left church on Mother's Day with her husband Jim Toth and children Ava and Deacon, she sported a soft cast on her left foot.
"She twisted her ankle and is in a walking cast temporarily. Nothing serious," Witherspoon’s rep tells PEOPLE.
Witherspoon was married
in March at her Ojai, Calif., home.