so sick and miserable

I'm so sick with a cold and chest infection.. my period was due Xmas eve I think (can't remember cuz glow keeps changing it when I put in that it hasn't started) but no sign yet other than my breasts were really tender but now my nipples are just really sensitive and itchy and I've had a little diarrhoea (tmi sorry) today.. I don't want to take a test because I've had so many negatives in the last year.. so I just feel really miserable and sorry for myself today..