Should I wait to test?

Hey guys so last Tuesday I had unprotective sex, he pulled out but I'm still nervous. I haven't been stressing about it but I've been having weird symptoms that I usually don't get. My tummy feels weird, I've felt like throwing up all last week, I'm more tired than usual, I'm constantly hungry which I never am I eat and then 5 mins later I'm hungry again, i keep getting hot flashes when im constantly cold and today my mom was making sausages and the smell almost made me throw up which it never does. I was wondering if I should take a test tomorrow or if I should wait 2 more weeks when my period is expected? Maybe I am just stressing myself out, idk:/