Posting a mirror selfie on Instagram today (April 19), the former Steph Cunningham actress took fans behind the scenes into her dressing room where she stood in police uniform.
"Sergeant Harriet ready," Carley captioned the photo. "To be working again after so long, during this un-nerving time..whilst pregnant, knowing how hard it has been for everyone..I know I am very very lucky, feel truly grateful and I'm extremely excited [sic].
"Thankyou @bbc #doctors for making this such a fun journey already @mildredyuan and @unitedagents Thankyou #tv #filming #mumtobe #newjob."
Digital Spy has reached out to the BBC for official comment.
As you'd imagine, her fanbase piled into the comment section with excited responses, as one person shared: "The most BEAUTIFUL policewoman!!!"
"Will deffo be watching," added someone else, before a third commented: "Good luck, enjoy x."
The soap star is currently expecting her first child with husband Danny Mac, who recently admitted he's "so excited" to become a dad.
"We're just getting on with it the best we can, it's one of those things we're so excited about," Danny said. "That's primarily the focus now, it's just as well to be honest that I've got two jobs to go back to as I'm going to need them!"
Doctors airs on BBC One.
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