Help!

I am 24 years old and I am having issues with my cycle. I started on August 1-6, and then started again on August 15 and I am still on. I am on birth control and have had a few times where I miss one pill because of being overwhelmed with school. Can anyone tell me what is going on, because it’s like a light cycle but doesn’t have signs of it stopping. It’s honestly had me scared, because I do not know what is going on with my body. I do plan to eventually just get off birth control because of all the side effects it has and mainly because I do want to start a family sooner or later. Any help will be greatly appreciated.