You have to understand the level of confusion and stress your body was under with the BC in the first place, and give yourself some time to re-adjust. The birth control pill is classified as a known carcinogen. It is notorious for permanently affecting fertility, cycle regularity, hormone regularity, etc. If you are able to concieve after being on the pill, and many women are, it's very likely that you are just struggle to readjust, and that its' taking a while. As the previous poster answered, some steps in diet, sleep, etc, will help very much.
The other thing you need to know is HOW to chart your cycle, so that you can learn when you are fertile, what things are affecting your fertility, and stay off the chemical birth control later on so you live a long and healthy life. (as well as any potential children you might concieve.)
My suggestion to you would be to learn NFP. If you need any help with charting after looking at this website, don't hesitate to PM me.
Here is a home study course to learn NFP. It's super easy, and really rewarding.
http://ccli.org/productsservices/nfp-instruction/home-stu...