TTC and ovulation

I have 27 or 28 days cycle usually. I am CD14 today. I was expecting that I get my peak on OPK either today or tomorrow. But it still looks negative. Both pictures are same. Test strip on the bottom (in both the pictures) shows test from today. Above one was taken yesterday. Does it look like lh surge is happening day by day or its the same? I am trying OPK for the first time this cycle. Can somebody tell me when I may get my peak based on my cycle length and OPK?