Missed period

Cie

So I am 6 days late & haven’t been having my normal pms symptoms like cramps backaches hot flashes & frequently urinating. I have swollen sore & sensitive boobs the nipples are sore, I’ve been extremely tired & hungry lately, I have heart burn stuffy nose & have been sneezing but I’m not sure if it’s allergies. I took a test on Saturday & it was negative but idk I don’t want to keep getting negatives :/