Opk reading

So last night I got a positive opk that was as dark as the control line. I've been testing with fmu, at 2-215 pm and again at 1030pm. This morning I took another opk but this time it was way darker than the control. This my 1st month using opk with the cb advanced ovulation. CB indicated "peak" in the morning and opk indicated + before bed. This morning I also had right ovary pain for about 3 hrs. 
So I was wondering which opk I should to predict ovulation? We plan on dtd today, but wonder if we should tomorrow in addition to the previous 2 days that we have (Tuesday and Wednesday). Don't want to miss our little eggie.