Timing ovulation with vacation

We've just began trying to conceive and have a vacation coming up at the end of July. Glow has been really stellar in predicting my ovulation and period days, and is predicting my period during my vacation days. I'd much rather I was ovulating during those days coz this will be prime time for us to make a baby, since we struggle with different schedules to find time to have sex - this would be the perfect opportunity! Any thoughts/suggestions as to how I could achieve this? Please help!!! We are really looking forward to making a baby!