The couple, who play David Metcalfe and Debbie Dingle on the soap, became engaged in 2008.
Wolfenden told Hello: "We don't disagree about what we want to do for our wedding. But up 'til now, we haven't had a minute to plan it.
"The thought of having everyone focusing on me for the whole day fills me with dread."
The 31-year-old added that they are considering getting hitched outside the UK, adding: "We have thought about going abroad to get wed."
Wolfenden, who won this year's Dancing on Ice, has son Buster with Webb.
He has previously revealed his desire to have more children with his fiancée.
> Dancing on Ice "tough" on Webb romance, says Matthew Wolfenden
> Emmerdale Matthew Wolfenden: 'Big story ahead for David'