Help!

I’m 6 mo PP and have been feeling off lately. I’m about a week late so I decided to test. I took a clearblue digital and it came back negative, and like a dummy I popped it open to see my stick. There’s a clear blue line. I’m super confused at this point. Being that was my last preg test I took an ovu one just to see what it says and the test line is darker than the control line. I have to go out and get more tests tomorrow but has this happened to anyone? What do you think?