Go see a doctor!!
Go to the Doctor and get it sorted
Go to the doctor .
Go to the doctor.
go to a doctor!
Go and see the doctor
You need to go to the doctor TODAY.
That is a very long period. You need to go and see the doctor.
Could be an STI. Go to your doctor and tell him or her the details and he or she will help you out.
Wait a few days and if you don't get your regular period test again. If you get a positive result or still get a negative with no period within a few more days go see your dr as soon as possible.
Go see a doctor ASAP.
Go and see the doctor