Sorry for the long post:

So i started temping last month along with the OPKs.

I got EWCM on CD12 but only on CD15 did OPK say high fertility and on CD16 I got a positive OPK on two different brands. However, my temps seemed to dip CD12 and go up CD15.

Now, January CD11 had EWCM and a drop in temp and (currently) CD13 slight rise. I have been testing on OPKs morning advanced digital and afternoon normal digital OPK. Have oestrogen surge still but no LH surge detected yet. Can OPKs be that off? Or is the temps insignificant here?

I am at a loss to know when I actually do ovulate?