Quick back ground I have adenomyosis so my SO and I begain TTC about 9 months ago. My cycle stays pretty consistent 30-32  days I have had an occasional off month were I may have a 33 day cycle but that is it. Well today is cycle day 36 still no sign of my period. However I am nauseous and have a really full feeling I remember having with my other pregnancies. I took a cheap dollar test this morning and it was negative. I am considering going to purchase a first response and take it in the morning. I feel pregnant, I will be devestated if not but I just want to know for sure. Has anyone had this happen? Got a negative three days late and still was pregnant. Should I go buy a better rest?