Okay here is my question, I know if you touch an opk and a hpt while still wet you can get a dye run from opk to hpt. But, everything I have read says if it does cause a dye to run and be a false positive hpt, the line is not all the way across. And I also read that it only occurs if the opk was close to positive.

But what about if an opk doesn’t have a second lien and touches an hpt for less than 30 seconds and after 3 minutes? Would you think that the hpt was false positive?