Please help, I'm 3 day's late in my period, 4 test were negative, I have thick white mucus and my tummy is swollen, had a miscarriage at 11 weeks 4 months ago, please anyone tell me if I'm testing to early xxxx

You are testing too early. HPT accuracy is less than 50% the first week after you miss your period. It increase to 95% at the end of 2 weeks.