Light opk for over a week..?

Keiarra

So my opk was like light for days. My cm actually changed to the egg whites thick too in the middle of the day. We tried then later on that night I tested and it was still the lighter line. I woke up the next morning and my cm had changed. Watery. Now at 5dpo slight cramps, nausea, and thick cm kinda cloudy cm. Thoughts?