Advice needed

Hey y’all, I have a question. Has anyone received false negatives 2 weeks after their missed period??? I have been having symptoms (extreme fatigue, short of breath,Nausea, warm temp, really thirsty, some white discharge & sore boobs ) for 2-3 weeks now & I just took a test and it came out negative. First time I tested was when I was supposed to get my period and didn’t.