Scared of chemical pregnancy.. Any advice?

I know it's inevitable, but I'm terrified. After TTC for 1 year, yesterday morning I got my faint positive. I was so excited. I went out a couple hours later and got a clear blue dye test and it came back a faint positive as well. 
Well this morning I took 2 more tests and they aren't dark..
According to babycenter and other apps (from the start date of my last period), I'm 5 weeks today. 
I'm trying not to think negatively. But it's hard when my tests aren't dark..