OPK strips getting lighter but no LH surge yet

Rhiannon
I have been testing since May 5th and all tests are negative us do have an onviiis line just not as dark or darker than the control line - I have tested twice a day since the 7th of may and there's no LH surge - I had watery and egg white raw like mucus yesterday (only a little bit) and today my cervix seemed really high and soft - 
But I have tested just now and both today's strips are like completely faint only a very faint faint faint line hardly visible and my cervix seems more firm that it was a few hours ago? What's going on? Help help help