Are pink dye tests better than blue?

Jen

New here. TTC #1. I’m on Day 32 of my cycle, but usually start at Day 26 or 27. I’m 16 DPO & blue dye tests for the last 3 days are BFN. Or at least they look it to me.

Super frustrated & confused. Not sure if I call my dr to go in for a blood test, or just wait. Any advice please?