Blue test positive much lighter than pink.

So my period was due yesterday and I tested 4 days early on Sun with a pink and got a faint positive. Tested again Tues and got a bit darker positive and then took a final pink test yesterday with the darkest positive. While cleaning my house today I found an old blue test I bought last month and forgot about and just randomly decided to use it because why not. lol. The positive was much lighter then the pink I took yesterday. Since I miscarried in June it freaked me out to see it lighter. I know most people say pink dye term are better then blue anyway so am I worried for nothing? I'm sure being silly but needed reassurance. Thanks!