Almost 3 weeks?!

I've been having a light period for almost 3 weeks now. I don't know what to do to get it to stop. It is so annoying. Some days I don't bleed and then later in the day I'll bleed or I'll get it early in the day and stop around night. Today I didn't have any bleeding at all until a bit ago. It was light pinkish which is how it has been the past 2 days. Idk how to go about this. Can someone please help me. I need some kind of idea to make it stop. I really don't want to experience another 6 to 7 month period again. I'm also unable to see my doctor until June.