clear blue ovulation advanced digital

Christine • TTC our 🌈
Ok so last month i got 2 high days (the blinking smiley face) and then on the third day I got the peak (solid smiley face). This month I got only one high day and then the peak. Always used fmu. Does it vary like that from month to month? It kinda makes sense that it would, but then as I was reading the instructions I second guessed myself. Any thoughts?!?!