Could I Be Pregnant?

Hi Everyone So I'm just Curious on Other Input.. I had a Period last Month "May" I am currently a week late I had spotting very light for 2 days and that was it.. I have a Very sensitive Smell For everything that no one else seems too be able too Smell. I feel Nauseous hear and there and Crave things and don't, acne, as well as the constipation I'm Super tired. BUT i took a Test on Friday and it said Negative. Is it possible for it to be to early?