driving test while on period.... good or bad idea? ๐Ÿ˜•

Emma
My driving test is booked soon. Originally I wasn't on my period but this month AF is visiting early! Which changes the red dots on eve. This means my December flow lands on my driving test day! ๐Ÿ˜• will it be a complete car crash (excuse the pun) if I do my test on this day? 
Thanks ladies!