Sex after taking ++ ovulation test with no results ๐Ÿ˜Œ

Natalie
Took a clear blue ovulation test and I was as positive as can be (pics below) I updated my dates on glow and we baby danced accordingly! Even used pre-seed twice! My cycle started on Thursday. How does ovulation tracking really work? Anyone know any success stories tracking ovulation? We're ttc our rainbow baby 4 months now but this was our first cycle using ovulation tracker. Should we see a doctor?