It's not Minty's because he was clueless when Shirley confronted him, he hasn't touch Heather.
It's not Billy's because he' not over the loss of Honey and the kids walking out on him and he's got Jay that's enough responsibilty.
It's not Darren underage sex is a no go and Heather wouldn't do that Sam, or Ronnie maybe but not Heather.
This leaves prime suspect numero uno Mr Beetroot man as baby Pickle's daddy.

