OPK as preg test?

Okay so I know I should use a preg test to detect pregnancy but my period is due anytime from today or next two days (irregular) well I had a spare opk lying around from this month and thought mmm I'll try it and it's come as this...I never normally get this sort of result unless I'm like a day or hours before ovulation. Just curious what it could mean if anything. On cycle day 26 and ovulated cycle day 15​