Sorry the way that question was written was just asking for a smart arse comment!
In theory as soon as you come off the pill you should be back to normal, although in some cases it can take a few months before the body gets back to normal. Some women stops taking the pill and can fall pregnant straight away for others it may take a few month. Being on the pill itself should not affect your fertility further down the line.
i was on it off and on for 16+ years.
i got pregnant with my first child the first month of trying. i also got pregnant with the second in exactly the same time frame.
I was on the pill for 18 years. I became pregnant after 15 months of stopping it, although we had sperm count issues as well. I remember my doctor saying that 80% of women conceive in the first year of trying, after being on the pill longterm.
For my first wife it was around a month after giving up the pill before she fell pregnant. For my second wife it was around 7 months after giving it up. Everyone is different.