EWCM BUT NEGATIVE OPK

Yesterday and today I’ve had EWCM and lots of it. My opks have been negative the test line is suuuppper faint and its not getting darker. I’ve been taking opk tests twice a day. What do you guys think? Btw this is my fertile week according to this <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a>.