Going off the pill

I wanted to get off artificial hormones so I discussed with my GYN going off the pill. Under her instructions I finished the pack I was on. Got my normal period Oct 12-16. She said if could take a while for my period to come back and if I don't get it in 3 month to go back in. Just wondering how long it took others to get back to a normal cycle? Is it possible that I get my period on Nov 9th (when I normally would have gotten it)? Thanks!