The gorgeous singer, 31, revealed her happy baby news via an Instagram post to mark her birthday, telling fans: "On this special birthday I received an abundance of love from friends and family.. and I'm excited to finally share one of the Greatest Gifts of All that God could give..."
She added a string of emojis including a baby.
In her accompanying photo, Ciara is seen smiling and she leans back on husband Russell Wilson, 27, who is an NFL player for the Seattle Seahawks,
Ciara and Russell married at Peckforton Castle in Cheshire, England in July, watched by celebrity guests including Jennifer Hudson and Kelly Rowland.
They began dating the previous year and were engaged in the Seychelles in March 2016.
Ciara and devout Russell famously embraced a no sex before marriage policy, with Russell explaining during a July 2015 interview with Pastor Miles McPherson that he'd been the one to suggest it.
"I said to her – and she completely agreed – 'Can we love each other without that?' If you can love somebody without that, then you can really love somebody," he said (according to People.)
"I ain't gonna lie – I need ya'll to pray for us. Because I know you have seen her on the screen now. If there's a 10, she's a 15. Pray for me, keep my mind clear, keep my heart clear."
Ciara, meanwhile, told Access Hollywood: "It's until the deal is sealed. Absolutely. It was an organic thing for him and I think he was just being honest about where we are. It's cool when you get to build a foundation with someone on how much you care for each other and really know each other's personalities, so it's really fun."
The singer has a son, Future Jr, two, with rapper ex-fiance Future.