Didnt realise exam would automatically start

I just reached the part of the course where I had read the exam instructions, I arranged for an invigilator at 2.00pm tomorrow Mon 9th Nov 26, pressed next tab and it went straight into the exam and clock started ticking. I got out of it immediately, didn't even read the question, but am now concerned because it stated you get one chance to complete the exam. I hope that this will not count as I did not take the exam, and intend on doing so tomorrow.