Should I wait

Took a pregnancy test right after I missed my period, it was negative! Fast forward, I have been experiencing back pain, constipation. Headaches and nausea... got a yeast infection which I only got with my first pregnancy for the first time and never again. I had a bowl movement in the form of liquid for one day and went back to constipation. I am now , 7 days late going onto 8 and I got a negative test again. So question is should I wait another week for a pregnancy test or should I see a doctor?

P.s - I posted anonymously because I’m super shy on people knowing about what I have. Sorry

Update- I’m pregnant !!!!