OPK test wrong?

A

Hi all

Anyone had a clearblue advanced digital OPK be wrong? I had a day of low, 4 high and then I got my peak. I had ovulation cramps and EWCM when it said high fertility and peak. I’m suppose to be 4DPO now but I’ve got white discharge and I’ve had it since yesterday. It is enough that it is noticeable in my underwear. I’m also very crampy. AF is due on the 18th so I don’t think the cramps are it.

Could the test have been wrong?