Ferrell, who was previously engaged to Season 18's The Bachelor star Juan Pablo Galavis, wed her boyfriend and longtime best friend Tyler VanLoo in Kansas City on Saturday.
"I had dreamt of this day for my whole life. It could not have been more perfect. It was something straight out of a fairy tale," Ferrell, 29, captioned a photo of the married couple in their stunning wedding attire on Monday.
Ferrell donned a trumpet-style, strapless gown with an embellished form-fitting bodice.
"A big thank you to @madisonsandersevents for working so hard perfecting every little detail. If you are in need of a wedding planner she is hands down the best!" she continued. "#princessfeels #weddingdress #kansascitywedding #bestdayofmylife #weddingplanner @alealovely."
Ferrell and VanLoo exchanged vows in front of friends and family at St. John's United Methodist Church in front of nearly 300 guests, including Bachelor Nation's Kelly Travis and Christy Hansen, E! News reported.
Tenth-season The Bachelorette star Andi Dorfman, who also initially competed on Galavis' edition of The Bachelor, served as one of Ferrell's six bridesmaids dressed pretty in light pink.
"Southern Celebration! Guess who's married," Dorfman reportedly shared on Snapchat. "How beautiful is this?"
Ferrell posted multiple photos on Instagram before and after the big celebration.
"We gon git mawwied y'all. #finalcountdown #theoldballandchain #stuckwithmeforever #illfindyou #lastminutedetails," Ferrell captioned a selfie of the couple smiling together four days ago.
Alongside an image of the wedding invitation, Ferrell wrote three days ago, "The class in all of those little @shinewedding details. I remember when I picked these beauties out months ago and thought how far away it still seemed. But now you've all received them, RSVPd, and I can't wait to see each and every one of you this weekend! #shinewedding #2days #weddinginvitations."
After the wedding on Sunday, Ferrell posted a picture of her posing with her bridesmaids with the following caption: "When your squad goes 100 for you. @alealovely."
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"This gives me all the feels. I cannot begin to describe how amazing this weekend was," she captioned a photo of herself walking down the aisle with her new husband.
"I wish I could go back and relive every single moment a thousand times over. Thank you to everyone who was a part of the best day of our lives, from our wedding party, down to the very last guest. Tyler and I appreciate every single one of you."
VanLoo shared a black and white image of the pair dancing, saying, "That life sentence doesn't seem so bad. #vanloopartyof2."
Ferrell and Galavis got engaged in January 2016 during a snowboarding trip the pair took to San Juan National Forest in Pagosa Springs, CO.
Ferrell had a highly-publicized and criticized relationship with Galavis following the finale of hisThe Bachelor season in March 2014, which featured an anti-climactic ending in which Galavis told Ferrell, "I like you," and offered her nothing but his final rose.
After appearing on VH1's Couples Therapy, Ferrell and the former pro soccer player split in October 2014. Reports circulated at the time Galavis couldn't communicate his feelings for Ferrell and allegedly used her for the fame of their celebrity pairing.
"I knew I was never going to be the No. 1 priority, like, he has a daughter. But I mean, there's a difference between being the second priority and the seventh priority. We're just different people and... we just never saw eye to eye on [things]," Ferrell told Chris Harrison back in January 2015.
"It's not from a lack of trying on either side. I tried really hard and he tried hard too... It's just, I'm a nurse in Kansas City and he lives in Miami, and he's in the entertainment industry... It was just really hard for me to fit into that."
Many The Bachelor viewers despised Galavis during his season for how he treated the women, and those negative opinions spilled onto Ferrell for choosing to be with him despite those obvious flaws.
"No one prepares you for what's going to happen on the show and being in the spotlight... I wanted everyone [to] be happy for me, and I felt like [our situation] was misunderstood for a lot of reasons... the hurtful things that people said to me, it's just no one can prepare you for that," Ferrell added in the interview with Harrison.