Still NOTHING

well im now 12 days late and more confused than ever i have given up hope for this month, nothing has changed! i have no spotting no positive HPT and no sign that this is my month i have just decided that its not my month and all the stuff going with me is all in my mind. I dont know what to do i dont go to the dr till the 15th and i dont feel stressed out as much as i did in the begining now i just want to know what is wrong with me i have never been late except when i was pregnant even with ENDO and the even weirder thing is my ENDO pain is gone i just feel sick like to my stomach and im so tired. There is nothing else i can do until the 15th my husband swears im pregnant and the hpt are just wrong. i think if i dont know by the 15th im going to ask her to do an ultrasound just to make me feel. Am i the only one like this why is this doing in now???? ok im crying done writing now im going to try and not think about it any more today