Should I worry about conceiving before vacation?

Samantha

AF due any day now and we'll be TTC after. Vacation is basically during the TWW, and I'll be due for AF at the end of it or upon return.

Those of you who have been pregnant before... Did you get miserable symptoms before AF was due? Miserable enough that it would ruin your vacation?

I really don't want to wait another month, but I'd hate to feel terrible on vacation if I get pregnant first try.

Advice is greatly appreciated!