Clearblue advanced ovulation test high fertility:

I had a miscarriage back on October 9th and as of recent ive been taking some ovulation tests being that the doctor told me it was possible for me ovulate around this time. Although, according to Glow I should’ve ovulated on October 25th. I also took some first response ovulation tests around this time and i had a positive result. However, I’ve taken a few ovulation test and for the last 3days the results have been a blinking smiley (high fertility). I don’t expect my period til 10 days from today though, my periods are usually not regular. So, I’m confused , is this normal? Should I keep testing until the blinking smiley goes away? I’m on day 20 cycle.

Please help!

Thank you.