As EastEnders viewers will already be aware, Linda - played by actress Kellie Bright- has been desperately worried that her unborn baby doesn't belong to Mick Carter (Danny Dyer), after she was brutally raped by his nephew Dean Wicks (Matt Di Angelo).
"The audience will know that the bomb is going to go off"
However, in scenes set to air later this week, Kellie is seen beaming with joy as she holds Mick's hand during a sonogram - suggesting the baby is in fact her and Mick's fourth child.
A source told the Daily Star newspaper: "Linda has desperately wanted the baby to be Mick's and the look on her face says it all."
According to these same show sources, the hospital scan is said to reveal Linda's due date, allowing her to calculate how many weeks pregnant she is.
And, after totting up the dates in her head, the Queen Vic landlady is left relieved to find that the baby growing inside her is Mick's son or daughter.
But Linda's happiness is to be short-lived, as viewers will see Mick 'go nuclear' after learning of Dean's attack on his beloved 'L'.
Speaking previously about the dramatic scenes set to air at Christmas, Danny said: "The audience will know that the bomb is going to go off.
"But they'll be asking themselves, 'How big is that bomb going to be?' And let me tell you, it's nuclear.
"I take insanity to a new level."
He also hinted that Dean will be punished for his actions - severely - as he added: "Justice will be served. Beautifully."
EastEnders continues on Thursday night at 7.30pm on BBC One.