Pregnant?

Hi everyone so July 25 I thought I got my period but I didn't intill the next day but then I just spotted after that for a two days then it stop so I was wondering if I could me pregnant but then I took a test that week it was negative then people told me to take a test again after a week so I did it was negative again so my next period is in 5 days but I am still having all symptoms still but I don't throw up and ever since 2 and half weeks ago I been have tiny cramps but not to bad and chest pain as will. I am still confused