The pill doesn't stay in your system. The pill actually leaves your system pretty quickly after you quit. The side effects of having been on are what lasts for up to a year. What happens is that your hormones can potentially take a long time to regulate due to having been on the pill. And some women have reported that it can take anywhere from just 1 cycle to a few months to a year to get their normal cycle back on track.
Are you not having a regular period yet? Because that's not totally uncommon. Some women resume a normal period right away after quitting, but others have to wait longer until their ovaries start responding again. And some women have a normal period for a few months but then have nothing for a while. It all depends on your body and how long it takes for your hormones to regulate. But the pill is definitely not in your system anymore after such a long time.
My GYN told me it leaves quickly too. Also, I took a 2 month break- before I realized I had ENDO (Yikes, can't take breaks like that now!) and I had my period like clockwork those 2 months, no adjusting time at all! Granted, that was a different pill than what I am now, too. Every woman and every pill is, of course, different.
In a town of chimpanzees I was a Monkey....