The 21-year-old EastEnders actress posted the picture to Instagram, captioning it: "Baby Jacqueline. Chubby cheeks !!"
READ: HOW WILL JACQUELINE JOSSA'S PREGNANCY AFFECT EASTENDERS' LAUREN BRANNING?
Perhaps Jacqueline was digging through the baby albums as her the due date for her own child grows closer.
She wrote: "Movements… So crazy!!! Wriggling about. Still amazes me. Really does."
Dan, who is also dad to nine-month-old son Teddy from a previous relationship, recently opened up about his own excitement at becoming a father for the second time.
"The second's due in the New Year and obviously it was a surprise but I wouldn't have it any other way.
"I absolutely love being a dad and I always wanted a big family. I always wanted kids at a young age too."