OPKs vs EWCM, which to trust?

Fleur
Last month I was nervous because I didn't get much/any noticeable EWCM and I did two OPKs and there was no line at all. So fast forward to this cycle and glow says I am ovulating at the end of the week and today is Monday...just did an OPK and same thing, no other line, not even faint, but LOTS of EWCM! I am going to BD anyway, but just wondered if anyone out there got a BFP and no positive OPK or if anyone just relies on EWCM and not OPKs? Each time I've used an OPK I haven't gotten a dark second line, but this cycle I will continue on for another week just to see...thanks!