Pregnant with negative tests?

Sarah 💑 • 2 ectopics; wanting my rainbow baby, now more than ever
Has anyone ever been pregnant and had negative pregnancy tests? I'm currently 7 days late with two negative tests. I had a miscarriage about a year ago and I had no symptoms of being pregnant except that my period was 2 weeks late. I'm currently having no symptoms except fatigue. My cervix is high & soft. Is it possible to be pregnant and not receive a positive test?