Hi!
The cycle you are describing is not normal. It is common though for women to have an occassional "abnormal" cycle. If you were my patient, I would order an ultrasound to evaluate the thickness of the lining of your uterus. If it was too thick (more than 10mm) I would consider an endometrial biopsy. Once the biopsy was done, (or if you didn't need one) I would prescribe some medication to stop the bleeding. If the lining is thick, the best be is progesterone. If the lining is thin, the best bet is oral contraceptives.
You can wait and see what happens, and if the bleeding stops and is never abnormal again, there is no need to call your doctor. If it doesn't stop within a day or two, or if this becomes a pattern for you, you definitely need to get a check up
Good Luck!
Dr B
Is there a difference between spotting and implantation bleeding??