Negative pregnancy test after miscarriage

Brittany
I lost out baby on Nov 11th . Today I'm feeling super nauseous and my husband said " could you be pregnant again " .... I figured I'd check juat to see / see if my hormones are back to normal and reading negative . How long did it take for you to get negative pregnancy test !?   We were not careful a few times since I stopped bleeding so now it makes me wonder . But positive could even still be last baby . I don't want to get excited over nothing.