Earlier this year, Miranda, 34, opened up about having a family with Evan, 27, before marriage.
Flynn, Miranda's son from her previous marriage to Orlando Bloom, is six-years old.
Congratulations are definitely in order! She previously told Net-a-Porter she, Spiegel and Bloom maintain a friendly relationship focused on Flynn. She further explained the decision by saying, "My partner is very traditional". "I've been doing resistance training and some good squats, sit-ups and all that stuff".More news: Kim Kardashian West confirms sex of baby
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Happy days: The happy couple married in a "small but lavish" ceremony at Evan's home in Brentwood, California.
The mum-of-one previously admitted that she didn't know who Evan was when they met for the first time, despite his success in the tech industry.
Asked about the biggest challenge of parenting, she said: "I think it's the responsibility of raising a child to be the best version of themselves".
A due date hasn't been announced, so we'll just have to keep our fingers crossed for another update from the growing family.
There was no bridal party, but Flynn played an important part in the day - serving as ring bearer and joining his mother and new stepfather for the first dance.