Should I take a test or probably stop stressing?

I just recently had my period but was not normal flow for me. Normally its heavy. I had high temp for a good while but its drop a bit. I have light brown spotting for 2 days now. I did have implant bleeding with my first. I know I'm most likely not but my sense of smell and taste being odd lately since my temp was high for 2 weeks and lots of smells make me feel sick. I can taste sugar a lot and can't drink anything with corn syrup cuz its so gross tasting now. I've been watching it seeing if they'll go back to normal but hasn't its bugging me. I did take a test almost 2 weeks ago but was neg. My period was late and got it on the 29th and ended the 1st.