Always FALSE positive HPT with First Response

Hey all, 
I'm wondering if anyone else has experienced or heard of consistent FALSE positives when using the First Response Early Detection hpt
Every time I use it (I get them in opk kit) it's positive, but I'm not pregnant. I've tested this out about 10 or so times. 
I currently have my period and just used one out of curiosity and it's positive (see image). It happens every time without fail.
What the???