For you ladies using cleaeblue advanced opks. Do you get high fertility around the same time each month or different?

Last month I got the flashing smiley on day 10 or 11. The month before that the flashing smiley was day 12. This morning I am on cycle day 12 with no flashing smiley. I usually peak day 13 or 14.

Also m easy@home tests seems different this month as well. They are usually a little darker by cd12. I'm confused! I had a miscarriage in December and everything has been normal since.

Any help is appreciated!