Pregnant??

I was worried I could be pregnant and took like a pregnancy test every few days from 4 weeks after I had sex to like a couple of months after.

I have had periods since then. This what's one of my tests and I was freaking out because it has a white line and in the negative the line looks black? Please tell me this isn't a positive??

I am on the pill and my partner always used protection!! I'm an over thinker and always think the "what if"