Pregnancy HELP negative HPT

Patient: Well I’m 27 years old. My fiancé and I have been trying for over a year no to conceive. And i am on day 8 since my period was due with no early pregnancy symptoms or menstral symptoms besides no discharge at all. I took a HPT yesterday it was negative. My period has always been regular (within a day or two to my calculations which is 28-31 day cycle, lasts for 7 days, starts off medium to a heavy flow then gets heavy up until day 4 or 5 then light until day 7) up until last months. Where I spotted for the first two days had light flow for 8 hours then spotted for two more days. And now this month it’s no where to be found.Could I possibly be pregnant even though the test said no?

Symptoms: Missed period, negative HPT

Doctor: