Coronation Street: Tyrone finds out Jackie wasn't his mother (Recent Retcon Explained)

I was a bit confused by the whole Tyrone storyline recently. So I went back and found the reason given. Still doesn't make total sense as Jackie doesn't seem the type of woman to take a baby. Darren Dobbs however gives the reasons so we won't ever know from Jackie's POV. 5th September 2018.