Warning TMI waxing dilema

OK, so I was just about to make my appt to get waxed and noticed my calendar said I will have AF!!!!

You can plan, plan, plan, but it still doesn't work!!! So do I go on:
Monday-when I KNOW I won't have it

Tuesday-when I will prob get it, but maybe later in the day

or

Thursday- day before the wedding

This S U C KS!!!!