Sprintec BC Pill

Hello everyone! So I'm supposed to start my period 10/10 (tomorrow) and that's when I was instructed to start my birth control. I'm also going to be skipping my inactive pills for three months in order to get my period every 3 months. I have a really important trip in June and July 2017 and was wondering if my period would land sometime then and around what week/day so I can hopefully plan around it. I'm just confusing myself so I'm seeking help. Thanks!