Last night, viewers saw Debbie confess that she is expecting a baby in a heart-to-heart with Chas and mum Charity.
Speaking on This Morning today, Webb hinted that Debbie's pregnancy news will only be the start of the drama in store for her over the coming months.
Asked where the story could go from here, the actress replied: "Well, who knows? Another baby on set - that's the big thing!
"This is kind of the start of a storyline that is going to develop in many ways and go on for quite a while. So this is just the beginning, really."
Emmerdale bosses have tipped Debbie for a big storyline for some time, but full details of what lies ahead have yet to emerge.
In an interview with DS earlier this year, executive producer Steve November promised that Debbie's plot would run "for this year and through into next".
Speaking at the time, he added: "Debbie's story will be huge and I think it'll be a big talking point. It will really challenge the characters and challenge the viewers - it's a fantastic story that will really touch Debbie and everyone around her."
Tension between Debbie and her partner Cameron continues in tonight's episode of Emmerdale as she confronts him over her suspicions that he is having an affair.
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