Yes that is definitely irregular .... You should definitely consult with a doctor immediantly
This month I had my period 3 times. Each time getting heavier and a lot more painful. I am not on birth control. I am not under any stress, life has been normal. No sudden changes in my day to day life. Should I be concerned?
Book an appointment to see a doctor. That's a lot for a month. Increase your iron intake, that much bleeding is probably making you very tired and borderline anemic.
See a gynecologist ASAP. This is not normal. If this doctor can't see you right away, go to your regular family doctor. Which ever can see you first.
If the pain is severe or you feel dizzy or exhausted, go to an emergency room.