So I just had my period the 15th through the 17th of this month. But before I got that period I had taken plan b. My original period dates were supposed to be the 28th-1st. This app is saying my next period is in 9 days. But I also started the pill this past Sunday so I've been taking the pill for 4 days now. I won't get a period in the next 9 days will I? I'm so confused, has anyone else experienced this or have any suggestions to what's going on?