Sooo I am very regular with my period and I know my body well enough to detect my symptoms. I am 5 days late as of today and I am experiencing tender breasts, mild cramping in my lower abdomen, light reddish/Brown spotting, and nausea. I've taken 2 pregnancy tests and they've come back negative. Just wondering if it could be a false negative and I should take another? Or should I be worried about another health issue at hand? Thanks in advance!