Has anybody else on here got pregnant by following the calendar on the app? I put in my period days and it tracks down my ovulation days. But my question though is it correct ? Because I got curious and tried out two other apps and put the same period days in and they said something totally different so I'm not sure.. maybe iv got my cycle days wrong I'm not sure how many days my cycle is iv never really understood it. My period last 5 days out of each month is if anybody might know how to track cycles better than me.