Thanks Hurdity. I didn't realise that. I thought day one would always be the first day of my bleed.
I was already on day 13 of my natural cycle when I first put my patch on. Because of that my GP told me to still start the Utro on day 15, so only 2 days after I started wearing my patch!
I took my last Utro on Tuesday night so Wednesday was day 27 and Thurs was day 28, is that right?
So actually yesterday was day one, right, even though my bleed didn't start until today.
Soooooo, today is day 2? That's good actually. If the same happens next month and my bleed comes again on the 4th day after finishing Utro, then my bleed should be well over before we go on holiday.