Do these things EVER show positive!?


So this is the first month I've been using these... I started on day 10 and have been using them on average twice a day ever since. I'm now up to day 17. I have never seen anything other than the lowest negative (basically no line at all) 🤦🏼‍♀️.

So help me out... I'm supposed to ovulate today according to glow. Yesterday I started getting egg white CM. This morning I'm still getting a complete negative. Does this ever change!? Am I broken!? I have a really standard cycle. Glow predicts my period to the day every month. Help!