The barmaid will step in to act as a surrogate mother to Izzy Armstrong (Cherylee Houston), according to the Daily Star.
Disabled Izzy has already turned to sister Katy (Georgia May Foote) to help fulfil her dreams of becoming a mother.
However, Izzy and Katy's dad Owen (Ian Puleston-Davies) later forbids his daughters' plans outright.
He then offers a struggling Tina cash in exchange for being a surrogate mother to Izzy's child. Tina's boyfriend Tommy Duckworth (Chris Fountain) is shocked after she tells him of her plans.
Tina replies: "You know that they need us as much as we need them.
"If you want to wipe the slate clean and have the kind of life we want to have, then this has to work. We've got to go to that clinic and keep everything crossed that this works."
A show source added: "It's a massive deal for everyone involved."
Georgia May Foote recently spoke to Digital Spy about the ongoing surrogate mother storyline.