Clearblue Advanced ovulation tests Confused

Hello ladies ,

I’m a bit confused this morning with my ovulation tests. I decided to test on two separate tests but same brand etc. one says negative empty circle the other shoes flashing smiley.

However, I got a solid smile and flashing smiley in previous days probably about 5-6 Days ago.

I’m experiencing some cramps but know I’ve passed ovulation.

Any advice , have you ever had this issue

My mind is saying maybe it’s a process of implantation but also idk and don’t wanna be worrying too much.

I just keep testing ovulation to see if it’s still giving the same results..

One of the testers is newly opened

The other I’ve been using since my period ended and I started testing LH

Old one shows- negative

New tester - flashing smiley