So i have a problem. I dont think it could be pregnancy but i could be wrong. I am 21 days late for my period as of today. Never been more then 2 days late before. I have tingly breast from time to time, i am constipated, tired all the time , back pains like no tomorrow , eating like crazy , i havent been sick in almost 3 years now i have a stuffy nose with some coughing and sneezing. And some mild stomac cramps witch im going to say is from the constipation. I tested the first week after my missed period and on day 14 of misse period. Negitive . i went to obgyn he has done blood work but cant get back to me till he comes back from vacation anyone have any ideas or went thru the same thing i am ? Love some advice.