helppppp

My period is 19 days late and I don't know what to do. Should I take a test? I had sex these couple of weeks and days now unprotected with my boyfriend and everybody that I talk to say I'm pregnant. And I took a test like 3 days ago and it says negative went to the doctor she told me to wait until my appointment. I've been having headaches, cramps, feeling the need to throw up, stomach pains, I spotted, gassy, extremely tired, I hate certain smells, I have boob pains, I'm emotional . I don't know what else to do . My period was suppose to come at the first of the month😩. Somebody tell me what I should do. These pains are extremely hurtful they make me wanna cry.