Clearblue digital ovulation test

Morgan

This may be a dumb question, but can you use the same digital reader for multiple cycles? I know the package insert said once you get a peak reading, don’t test again that cycle, but can you use the unused tests the next cycle? Reason I’m asking is I used just the plain clear blue ovulation tests in addition and they look very positive, but the digital reader says no peak. I was hoping it’s not going off of last cycle