I am going out of town April 26-29th. I am currently off birth control but I am going to be getting back on it after being off of it for about a month. Before I had taken it for about six months. I will be taking the same birth control. According to the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> app which is usually close to my starting date, my period will start the 19th. My period usually lasts about 7 days. So id basically be done by the time my trip is. However, i’m worried that <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> will not be correct and i’ll be on my period during my trip. I’m going to a music festival and this will be hard because it’s all day and i try not to use portapotties as much as i can. So my question is, if i take my birth control starting tomorrow (it has 24 active pills) would i not get my period until the pack is finished? Usually on this pill i get it the first day of my next pack. Or should i just let this upcoming period happen as planned and start my birth control then?