I've had a negative pregnancy test, but no period for 1 month

Shelby • •Oilfield Wife💍 •Hulahooper •SAHM •FL🛩OK •Two amazing fur babies •November baby coming soon 👪
So far I haven't had my period of the whole month of December. My period was suppose to start a week and a half ago. I've taken a first response gold and a CVS brand test... both said negative, but no period or pregnancy symptoms! I'm going insane... my husband and I have been trying to conceive since October!