HELP PLEASE

J • #1 MC #1 chemical , trying for rainbow baby #1 🌈👶🏼💕

I had a very small amount of light pink spotting yesterday like the smallest amount and no more since that was 11DPO so I took a test this morning not pregnant on clearblue digital and on my HCG but I swear I can see a second line on the clear blue one ?? Do they all come up with a second line as part of there test???