My period is 14 days late I took a test on the 6th r 7th it was negative my breast are sore and hurting do I take another test now

You should wait a week every time you test or you can go to the doctors and tell them what is going on and they should do a pregnancy test and if you still haven't had your period a week later they will send you for a blood, nothing is more accurate than a blood test :)
Your boobs could be sore because either you are pregnant or your period is going to come.
Do they usually get sore then your due on?

Hope this helps you :) hope you get the outcome you want :) x

You could try another test now. Make sure to use first morning urine when you test.