I took a test yesterday at 2:30pm & took another this morning at 4:30am. My mines are darker compared to the test I took on 4/20, but now I'm concerned that there's not much of a difference between last nights test and this morning. The cheapy test was on 4/20, then the top test was yesterday, bottom test was this morning. I was using First Response Rapid Results. Any insight would be greatly appreciated. I'm nervous!