Anyone found that their clear blue digital ovulation test was inaccurate?  I very regularly ovulate on days 18-21. This month I supposedly ovulated on day 9 (according to a solid smiley face on the ovulation test).  I've continued testing every 3 days or so- since that seemed strange... And sure enough, today on day 18, I got another solid smiley face.  Thoughts?  Can you possibly release two eggs at different times in a single cycle or should I assume the first time was inaccurate? Thanks for the help.