8 days of high fertility, no peak yet??

Since my miscarriage at the end of June, I have since gotten my period and I am back on track. As I did prior to conceiving, I’m using the clearblue ovulation kits. Today is my 8th day getting the flashing smile which means high fertility. Typically I ovulate on CD 17 or 18. It is now CD 16 and as I said I’ve gotten The high fertility reading for 8 straight days now. Has this happened to anyone else? Are my hormones still out of whack from the miscarriage even though it’s been a while and I’ve already got my period? Is this an anovulatory cycle? How common are those? I’m testing multiple times a day so I know I have not missed it.