make it make sense!?

Danielle

Currently in the ovulation testing phase. Today is day one of testing, I skipped a few months of ovulation testing and have a relatively irregular cycle, so today is day 13 of my cycle and starting it today.

All of these tests were done with the SAME urine sample at the SAME time. Different results??

Clearance digital advanced is clearly negative

PregMate is either positive or super close

Natalist is negative????

What would cause this? Which do I believe?