O & OPK's ?

Alison
This is the first time I have used OPK's.  With my DD I got pregnant quick.  My cycles have been so crazy over the past year, I decided to use OPK's.  So here is my question:
On Friday I had a low, Friday night high, Saturday high, Sunday Peak.  I have continued testing with cheap tests and the lines have continued to get darker.  Now they are SUPER dark, would you consider today to be my o day? We have been doing the smep and thought we would take tomorrow off and then BD the day after. I didn't want to skip a day if tomorrow might be o instead.  We BD'd Thursday, Saturday, Sunday, and twice today (early am and p.m.)