2 tests holders 2 different results

Hi! 

My husband and I are TTC and I’m using the clear blue advanced ovulation test along with my oura ring. I have tested the last 3 days and received a low fertility result until this morning. I received a peak fertility result this morning, but I usually have a few days of high fertility before my peak. This is confusing me! Reason for this? 

with this confusion I decided to take another test with a new holder (I recently ran out of test strips so I had to buy a new kit). My new holder gave me a low fertility result twice (in the same day). 

should I trust the first test with my original holder? Or was it a false positive type thing? Also, why did I go straight from low to peak in 1 day?!