Frequent release and bd as my opk faded in. once I got a + we did one more night. Based on previous months I am guessing I O'd within a day. I was trying to count more on the diet than cutoff because I had not got pregnant other months and the diet was becoming difficult for me.not to mention my DH was completely fed up with swaying except for the frequent bd of course. Good luck and relax. It will happen. :)