Hello there last month my period was 2 days late and it was for only 4 days well for some reason now this month I'm 4 days late and my breast are a little sore I have taken a test today it was negative ? I really don't know what to think can some one please help me :) :) thanks buffy .

You may just be late... a few days one side or the other is not unusual. Give it another week or so and see whether your period shows up. If not, try another test at that time.