The Olympic gold medal-winning heptathlete, 27, married Andy, a construction manager, at the pretty St Michael and All Angels Church in Hathersage, Derbyshire.
Jess looked stunning in a wrap-front gown with a huge ruched skirt and a long veil. She carried a bouquet of cream and pink roses, and had four bridesmaids for the Big Day.
The couple have been together for eight years after meeting at King Ecbert School in Dore, Sheffield.
Congrats to the happy couple!
See all the pics from the wedding here: