Getting left behind

Greetings Mark & Steve: I received my first contact and invitation on or about April 17, 2015. About 3 to 4 weeks later I received the first book. It is now Sept. 4, 2015 and I just finished reading my first book and now starting on the second book. I suspect it will take me at least another 30 days to finish reading the second book considering my present circumstances and time element. Then I have the final book to start when done with the second book. Now that I have already started with the meetings, will it cause a problem or will I get left behind or miss anything continuing these meetings since I have not finished reading all the books yet? I really want to go through this process in the order it was established which I understand was having read all the books before attending any of the meetings so I won’t miss a lick. Can future meetings be put on hold until I catch up with my reading or should I just continue on as I am reading what I can when I can and continue attending all the meetings as scheduled?
Thank you.
Respectfully, Rod S.