Help me end my menstruation cycle

Patient: My period was usually irregular as a teenager, where I did not have one every month, sometimes not for six months. but as an adult it seemed to regulate, at least within a week or so of it being due. but now, back in September I started on sept 23 and lasted till October 5th. 13 days. then started again October 26th till November 6th. 13 days. then…again on November 11th…and i’m still currently on it. 20 days. I’m concerned if it is due to the medicine I had to stop taking back in the end of October due to no insurance. I am afraid this is something worse.