Here is what's been happening:

Monday - Heaps of cm, got home and tested +opk, same as control line.
Tuesday - Still lots of cm, +opk darker than control line at 10am, same as control line at 6pm
Wednesday - +opk same as control, less cm today
Today - at 12pm -opk, regular cm

Now we dtd Monday, Tuesday and Wednesday evening. Should we do it again tonight, or have we covered all bases?

ETA: I really can't be bothered dtd anymore! It hurts!