And Billie's gorgeous baby bump is the reason for the rest of the family descending on her mum's house this Christmas Day, instead of her and Greg's lovely abode in Brentwood, which has played host to up to 25 guests over the past three years.
"I'm going to sit on the sofa this year and be waited on hand and foot. I can't wait!" Billie tells us, as we settle down for a cosy chat with her and Nelly, two, in her stunning Essex home.
So, what's on the agenda for this Christmas Day?
"My dad will stay over on Christmas Eve night," reveals Billie. "I always do crispy bacon bagels on Christmas morning. We'll then go to my mum's house at 1.30pm. There will be about 12 of us. For the last three years, I've cooked here, but I'm really looking forward to having a year off, especially with being pregnant."
"I'll probably be sat on the sofa looking like a Christmas pudding, eating loads for most of the day," she laughs. "I'm going to make the most of resting and playing with Nelly and all her new toys."
"Christmas Day is always a good celebration at the Faiers' household," she adds. "We don't do it by halves - it turns into a big part with games."
Pick up the bumper Christmas issue of Reveal magazine, in shops now, for more about how Billie will be spending Christmas Day, how her second pregnancy is progressing, and when she plans to wed Greg!
Former TOWIE star Billie and ticket broker Greg have been engaged since 2014, when he popped the question during a romantic holiday to the Maldives.
When we chatted to her last year, the star said she originally wanted to be pregnant and married by 2016, but her busy work schedule meant the wedding had been pushed until 2017.
Although Billie's been on TV for the last few years thanks to TOWIE and her sister Sam's spinoff show The Baby Diaries, fiancé Greg has tended to stay away from the limelight, which Billie is happy about.
"I'd hate to constantly be picked to pieces over my relationship," she told us. "I think Greg not being on TOWIE has massively helped us. It's great we've both got our own things going on and don't work and live together."
Billie quit TOWIE earlier this year.
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