OPK- help and thoughts

Brittney
Had anyone taken a test (clear blue digital) and one day it shows LOW and the next day shows PEAK? That happened to me today, I never saw a HIGH reading in between. I didn't have sex yesterday or any day leading up to yesterday but we did today. Thoughts on if I am in the clear? Is there a chance we could still conceive? We have been trying so hard it's becoming frustrating.