I checked my blood pressure while I was in the store today. It is usually 120/85 but today (i haven't checked it in quite a while) it was 106/78. My period is about 2-4 days late but have had no other signs of pregnancy. Can this drop in blood pressure be an indication that I am pregnant? Or just the opposite? Also, this is my first month off the pill after a year of use, which I know can affect my period.