My friend has very bad periods and she takes those pills whenever she is due on during a holiday, she swears by them.
I have an implant now so my period could come on the day, but they are not too heavy anyway so I am not overly worried about it but if I was still on the pill I would definitely double up the packets. I used to do that for 6 packs on the trot and then have a break and my GP said it was perfectly safe as periods on the pill are fake anyway so if you don't need to have one, apart from for your own peace of mind, then I think it is a great idea !!