Period delay! Help!

Hope
So I've been off from birth control for about 2 months, and I've always have gotten my period. I have never skipped one in my life. I'm not sexually active so I can't be Prego. Is it normal to skip a month? I was supposed to start on the 25th and now it's the 30th. If I don't get it today, I skipped the whole month of November. Any advice or help?!
Thank you!