Super confused

I had what I'm guessing is my normal period and then I started using my opks the day it ended wich all were blazing pos and someone suggested testing so i did and got a vfl on not just one but 2 of my tests 4 to 5 hours apart??? I'm super confused atm idk if it's just a couple of bad tests or what's going on. Has anyone had what they thought was an actual period and then ended up getting a positive hpt? My test strips are 25 miu and yesterday I took one and it was bfn but the two today were faint but definitely there