3 days late

Ashlei

So I am 15dpo, and 3 days late on my period. I tested with the dollars test earlier this week and it was negative. I had symptoms like nausea, irritable, light cramps, tired all the time.

I want to test, but I dont want another negative to pop up on it.

So my questions are when should I text again and what brand of test should I use?