OPK!?!?!?!?

Afternoon all.....I was clearing out me hangbad and found a opk and thought oh stuff it let's do it (barring in mind a came off 2 days ago) and I got 2 lines one light one dark ?!?!? On the 14th I got a vvvfl on a preg test but everyone after that was negative but the opk I was doing all came back with 2 lines one light one dark. Sometimes the lighter line was vvvvvvvfl then most times you could blantaly see it. Has anyone had this before or know what it could mean??? My body is confusing me roitten lol 😂