Blinking smiley face!

I got my first blinking smiley face yesterday but my husband and I both worked and didn't get home until late and didn't get a chance to BD. Glow says yesterday was my highest percentage.  I just took another test and its blinking and I also am having lower pelvic pains. Could I have missed my biggest window or does it mean I'm ovulating soon? I'm scared that it may be too late