Pregnancy test brands?

Hey so I'm like 2 days shy of missing my entire period. Have only had light cramps, no spotting, milky discharge, and the milk it my boobies from my kids before has been coming out pretty strong. I've taken the clear blue first response not the digital and then a assured pink one from dollar tree and they're all negative. My period has been on time for the past 6 months so maybe I'm thinking myself crazy and delaying my period but what's the best pink dye test to get? I'm gonna keep testing til there's blood drippin