Here is my information for last month. I only ever started tracking my BBT in July, so I'm new with this, and as you can see I had a fairly normal range from about 97.7-98.1. I stopped regularly testing after my fertile window (I don't know why) but I didn't get my period on the 6th like Glow said I was supposed to and I decided I should track my BBT just in case check. I am now a week late and my BBT is now staying elevated at around a 98.6. I have gotten several negative HCG test. Could I be pregnant? What are your thoughts?