The app says that I should be entering my fertile window about 7-10 days after my period. Last cycle, I only used CB Advanced for my OPK, and not once did it ever detect an LH surge that I was ovulating. Every other physical symptom (CM, BBT, etc.) pointed to me ovulating anyway.

Because the clearblue never picked anything up, I decided to try Inito instead. Today is just 2 days after my period ended, and initio picked up that I have already entered my fertile window as of today. Which is completely different from this app. Interestingly enough, it did not detect an LH surge (so this explains why CB Advanced never showed a surge as that is all it measures) but rather a e3g surge. I’m relieved in a sense that I’ve discovered why clear blue never detected ovulation, but confused.

Does anyone else experience their fertile window directly following a period? And without an LH surge? Is this an issue for people getting pregnant?