It is not normal or healthy for menstrual bleeding to continuing over an extended period of time. There are a number of possible reasons that the bleeding has continued or resumed. Call your physician and make an appointment.
You may be experiencing implantation bleeding if you've had sexual intercorse (typically occurs a week to ten days after fertilization of an egg), you may also be experiencing break through bleeding if you are on birth control. You may be experiencing a hormonal imbalance or if you've had sex recently you may have irritated or torn the vaginal lining.
If you have recently missed a period you can experience excessive bleeding. Stress can also cause this problem as well as change in diet and weight. I would talk to your gynocologist and discuss your concerns as this might be an indication of a bigger problem.
Bleeding during your menstral cycle is quite common. Two weeks after your period could be a sign of implantation, stress or could even be caused by intercourse. If it continues or occurs again you shoudl consult with a doctor.
There are many reasons for this. You could have endometriosis and/or a cyst. Go see a gynecologist. The only way to diagnose endometriosis is through a minor surgery, but they can see cysts on ultrasounds and CT scans.