Missed Period - Negative test

Erin
Hi y'all,
So I'm going crazy. I've missed my period (I'm late as of today and currently no AF signs in sight) and have nausea and sore breasts but tested yesterday and today (digital and pink ) and both were BFN, not even a faint line. Should I see my DR? Could it be something else? I haven't missed AF in 20 years and if I am ever late it's always just a day with definite signs and spotting the day before.