Wish I didn't take another test!

I just took what will be my 5th test in 3 days and it was ever so SLIGHTLY lighter than the one I took last night.. Now I'm worried (had a chemical pregnancy 2 cycles ago). The test line in the 4th AND 5th tests are not faint and almost same colour as control line but I still can't help but be worried! Need something to ease my mind... Seeing doctor next week! Ahh I know it's probably nothing! Sorry for the rant.