Jenna revealed she and Karl decided to be spontaneous and elope in New Orleans while they were visiting the city for the NCAA men's basketball tournament.
"We finally did it!" Jenna captioned the slideshow on Instagram.
"Couldn't wait any longer to marry the man of my dreams;) We decided last minute to come to New Orleans for the Final Four, and just elope! It was so fun and spontaneous and exciting."
Jenna said she was able to plan her wedding and set everything up "within a few days."
"I couldn't be happier with how it turned out," she shared of her big day.
"The ceremony was really special, and we had our amazing friend, Catherine there with us who is a big part of our lives (and also the person who introduced us). I was actually very relaxed and able to take in every moment. Feeling so blessed, and just can't stop smiling."
Jenna, however, said her New Orleans ceremony was not the last event in her marriage celebration.
"For anyone who is disappointed, don't worry...we are still planning a ceremony and big party in the Fall with all our friends and family!" Jenna wrote.
"Will be sharing more about that soon, and lots more pics to come. Which one is your fav?! Last pic was the first look;)."
"Love you 4Everrr @kghudson4, and can't wait to spend the rest of our lives together as a family," she concluded.
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Jenna and Karl got engaged on the former reality TV star's 32nd birthday. Karl popped the question during a trip to Turks and Caicos with their then 12-month-old daughter Presley Belle Hudson, who is now 20 months.
"I said YES! Easiest decision ever, and Presley agrees," Jenna gushed on Instagram at the time alongside a slideshow of photos from her romantic beach engagement.
"Love my little family so much, and excited to marry my best friend! Karl is everything I ever wanted in a man and more. This is the best birthday, and I'm so overwhelmed with joy. Can't wait to be your wife @kghudson4!"
Jenna and the real estate broker went public with their relationship in January 2020 and welcomed their first child into the world later that year, according to Us Weekly.
"We can't even describe the overwhelming love and happiness we feel meeting our little sunshine!" the couple told Us at the time.
Jenna competed on Season 22 of The Bachelor starring Arie Luyendyk Jr. in 2018 and finished in ninth place.
Jenna and Jordan got engaged during the Bachelor in Paradise season finale in Summer 2018, but they broke up shortly after the finale aired on television over a he-said, she-said scandal in which Jenna had been accused of cheating.
Jordan later returned to Mexico for Bachelor in Paradise's sixth season in 2019, but his stint didn't last long due to a physical altercation he had with cast member Christian Estrada.
Jordan later moved on with Christina Creedon, a woman he met at the airport in Los Angeles when he offered to help the blonde beauty with her luggage.
Jordan popped the question to Christina before Christmas Eve mass in 2020 with her family at Christina's church in Texas.
Jordan and Christina got married in January at The Wynden, a romantic venue in Houston, TX, with a Tuscan setting and private enclosed garden.