Am I not ovulating?

Or

I usually ovulate bang on time according to Glow, <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Period Tracker</a> and Ovia. If my ovulation is predicteds on a particular day, the last 3 months I have ovulated on that day.

This month; I’m 3 days over until and I’m testing 3 times a day now with ClearBlue and just getting my blank circle.

Does anyone know why this may be? It’s making me feel really stressed😩

Thanks❤️