family vacation is ruining my bbt!

Okay ladies. i am on a family vacation and they don't know i am ttc. at any rate, it is very hard to take my bbt at normal time (or anytime for that matter) in a condo full of family. I am currently 8 dpo and af is due Friday the 13th. will this mess my charting up to not get to take my bbt for a week since I'm already post ovulation? this is my first whole month charting so I'm still pretty new to all this.