I've been waiting for 15 days already. I bought a test yesterday, and …

I've been waiting for 15 days already. I bought a test yesterday, and checked it today. I was really worried because I didn't plan on having another child. In fact, I already pictured how difficult it would be with two kids. Overall, the test showed negative. That is what I think. Can you also take a look? And tell me for sure that there isn't any second line here?)