Okay so I have been taking opk since my period ended and yesterday (28th)  I wiped and had a good bit of ewcm that's the only time it happened it hasn't happened since. The tests  were someone dark but when I had the ewcm and after they are just getting lighter. Did I miss my surge on the 26th or one of the afternoons? Can you get ewcm for another reason? I have irregular cycles ( 44, 53, 69, 144. I'm currently on cd 17) so I never know when I ovulate or when af is coming. Help!