The former Celebrity Big Brother housemate, 21, announced overnight that she's expecting a baby with actor husband Doug Hutchison, 55.
Courtney told Us Weekly she hadn't planned making the pregnancy public at just four weeks, but suggested the decision had been out of her hands.
"Doug and I weren't planning on going public with this so soon. I'm only four weeks along in my pregnancy. But some things are out of your control," she said.
She added to Entertainment Tonight the pregnancy wasn't planned, but said: "I feel happy about it but extremely overwhelmed."
Courtney was 16 when she met The Green Mile actor Doug, then 50, in Las Vegas, after striking up a relationship via an online acting workshop he'd been running.
They exchanged emails and he later said he thought she'd been at least 21 judging by her pictures.
They married with her parents' consent.
Following Courtney's appearance on CBB in 2013, the couple went through a rocky patch, legally separating but remaining close friends. Doug even remained as Courtney's co-manager.
But a year later the romance was back on, followed by a re-engagement and plans to renew their wedding vows.
Courtney's most OTT outfits
Copyright: WENN Josiah True