In a snap posted to Matt Di Angelo's Instagram, Jacqueline is wearing what looks like a sparkler on her ring finger.
DAN OSBORNE'S EX SPEAKS OUT FOLLOWING JACQUELINE JOSSA BABY ANNOUNCEMENT: 'THE AUDACITY'
Eagle-eyed fans spotted this, immediately questioning whether or not it is in fact an engagement ring.
TOWIE star Dan, 23, and Jacqueline, 21, revealed last month that they are expecting their first child together, and last week the EastEnders' actress showed off her growing bump on the red carpet.
Appearing at the the TV Choice awards, wearing a floor-length midnight blue gown, Jacqueline finally broke her silence over the pregnancy.
DAN OSBORNE'S EX SHARES CRYPTIC TWEET: 'HOW MANY TIMES CAN SOMEONE WALK BACK INTO YOUR LIFE'
Speaking to a British magazine, she said she is "very excited", but wouldn't give away any details of her due date.
Instead she coyly replied: "Erm, [I've got] a while [to wait]."
Dan, who is dad to eight-month-old son Teddy from his previous relationship with Megan Tomlin, recently spoke out about the difficulty of the situation.
READ: HOW WILL JACQUELINE JOSSA'S PREGNANCY AFFECT EASTENDERS' LAUREN BRANNING?
He told Star: "It's not easy for Megan. I'm obviously in the middle but I'm trying to do the best I can for her, Jacqueline and, of course, Teddy. We're trying to work through it all together."
Megan told the magazine: "It's all a bit raw. But it's done now. It's in the past. We're just going to keep it between us all.