what does it mean?

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So I got off birth control Saturday the 15th. I then got the before AF Monday morning then AF arrived Tuesday. 
I have tried to read up on getting off birth control. I've been on for 9 years. Since I was 18 so I don't know life without it. 
Everything I have read is that it takes people 2-3 month to get AF but nothing about getting it so soon. What does it mean that I got it right away!? Is it a good thing or bad?? I want to start TTC around July.