I just started tracking my cycle last month after my IUD removal in march. I had a 35 day cycle with O around cycle day 23. This month I'm on cycle day 22 and I think i will get a positive OPK today as I'm having a fade in effect. My cycle length will probably be 34-35 days this month too.

I used to O around cycle day 18 and had a 30 day cycle. I wonder if my body readjusted or what's going on.