Confused

I’m 2-4 days late depending upon what app I use, and I’ve tested with cheap amazon hcg steps twice and no double line yet. But not with first morning urine as I should bc I usually get period first off after sleeping and I’m kinda expecting it, I may be trying to not jinx it. Anyhow, breasts are tender, weird cramping and elevated resting heart rate. But no flo nor a positive test. WWYD? Please advise.