just want to show you how wacky opk are

So today I decided to take opk because I creamy water cm. Plus I was bored. Af due Monday the 7th so I took 4 opk test and two pregnancy test. Hpt were negative. Had two positive opk test and two negative opk test! What I'm god name is going on? And why am I having positive a couple days before my period start..excuse the make up on the clear blue