Can OPK detect pregnancy?

Shelby • 21. Married to the love of my life. TTC for 3 years.
So i bought a pack of 2 pregnancy tests as I am now 6 days late. Well I used both of them yesterday (messed up on one and other was negative but it was also taken at 9pm) and haven't went to walmart to buy anymore. But i do have a few OPK tests left over and I was wondering if I was pregnant and took one would it detect anything or be positive?