HELP- 14 days of AF

Daila

I’m on birth control and have been for years but I briefly got off in nicely for a month and restarted December 25. I typically stack my pills and have my cycle every third pack. Well I’m on my second pack and began bleeding half way through. I’m currently on day 14 of a medium to light period and the doctor provided no answers when I went to the doctor on day 9. Any ideas? It doesn’t seem to be letting up. No other symptoms