Okay HELPPPPPPPPP!

FF is saying i ovulated on cd 13... according to their analysis of my temps, but I 100% believe I ovulated on cd 16, or even possibly 15. My clear blue digital first displayed a blinking smiley for the first time on cycle day 12.. there’s no way I ovulated on the 13th day. Also, I had positive ovulation tests until midday on the 16th. With the first super bold test result on the 15th. I had a positive on the 14th day, but the test line got darker than the control on cd 15, and then went down midday on the 16 cd. And I could literally feel ovulation as it was happening. I’m so confused, please advise