Missed peak opk??

Hi,

So I've been taking opks since the end of my last period. The last couple of days my discharge has definitely been egg-white and lines on opk are getting darker however still negative. Today I've had mild cramps and backache however tests still negative. My discharge today however is changing from egg-white to a being a bit thicker (although still stretchy) does that mean we've missed it this month?

1st pic is this mornings test

2nd pic is the test I took tonight