So confused

I’m 3 days late on my period, having MAJOR soreness in my boobs to where they hurt without even touching them, severe heartburn and nausea BUT took two test this weekend and both came back negative. Usually before a period i have sore boobs but it only last a few days and my period follows shortly after but they have been hurting for over a week now and the past week I’ll get random waves of feeling like I’m going to be sick. Has this happened to anyone else or am i just over thinking everything? 😕