Thanks for your quick reply. No, the working yarn is on the right end. The stitch looks different than it usually does when it's at the end of a row.
I assumed that it's because I unravelled from the cast-on end and therefore everything was backwards (?) but maybe I just screwed it up when I picked up the yarn again?
UPDATE: Okay, so looks right, but it's on the wrong side, as though I have to knit left-handed now or something.