Am I back on my cycle??!!!?

Kristi

I stopped taking birth control (Nuva ring) in June. Shortly after stopping I started my period (I think it was my withdrawal bleed). Then AF didn't make another appearance until august. I thought I was back on my regular cycle. Now here I am (was supposed to start on the 11th) with no period. I got a bfn on Monday. So now I'm just wondering if maybe my cycle isn't back to normal yet