issue with ovulating test kit ?



Just curious if on letrozole and metformin for this cycle

And my ovulation date was last Friday

Letrozole for Jan.31 - feb 4th

My problem is I don’t know why my ovulation kit still showing two line

I take test every morning and afternoon but still showing two line

Anyone having same problem ???

Any possible way to know if I was ovulated or not?

My sr said it’s too late to check for ultrasound but maybe blood work can tell