typical girl

Hey mommas, I am going to be 2 weeks late tomorrow. I have experienced the whole pms episodes a few days before my period and nothing. My bowel movements have been ridiculous. For the past 2 weeks I have had diarrhea but I'm not sick. I've been cramping on and off. And lastly my sex drive has sky rocketed. I took a pregnancy test when I was 6 days late and it came back negative. When should I take another one? Should I just see a doctor?