I really dont know what is going on with my body.
I don't think you're pregnant. The blood tests are really sensitive. The blood test would be accurate.
The line was probably an evaporation line. You can't look at a test after 10 minutes. If it were positive, the line would have showed up within the first few minutes and would have been pink.
Sorry you're going through this. Last month, I had so many symptoms and thought I was pg. (I'm not.) My first test got an evaporation line around the 8 minute mark. It was a FRER. I got a very pale thin white/gray line. I took 4 other tests that week, and they were all negative, and I got my period on time.