Has anyone delayed their period for travel before?

Basically I’m going on vacation July 21 - August 2 with my partner and due to us living at home we rarely get a lot of alone time for sex. I have Pcos so my periods are i predictable, sometimes they are 32 days, sometimes 50 days. The past 3 months they have been 29,30,28 days long and I’m sensing my body is going to ovulate soon. I’m currently on day 11. I really want to delay my period so that i don’t have it on vacation. I was thinking of taking plan B and hoping it pushes it back but i also don’t want to screw up my hormones too much and all the work I’ve done is for nothing. Has anyone did anything to delay it?