I use to have a 30 day cycle now it is 36 day cycle and this has been occurring for the last 2 month… my period comes on time which is the 36 day, but I am confused why it has changed and I am noticing that I am ovulating 21st or 22nd day of my cycle (I am tracking it with ovulation tests). Has anyone else dealt with this and yes, I am going to see a doctor for this but I am just nervous on why this could be happening. My period lasts 6 days and there is no change in it. I am not feeling more or less pain than I usually do.