Had been using First Morning Urine for the digital opk and read that I could be missing it. So i tested at 6pm and got a remarkably positive line. Sweet.
I'm going to take a picture and show my OPK series, but some days I tested as much 3 times because the surge can be as short as 12-24 hours, so once-a-day testing can mean you miss it entirely.
Be back in a bit to post a pic...