I Was On The Nuvaring. I Realized A Couple Days

I was on the Nuvaring. i realized a couple days ago that i had taken it out a week too early. it isn't the first time it has happened. And when it happened before my period usually started within a couple days. but it hasn't this time. it has been 5 days since i have taken the ring out. I did have unprotected sex while i was on the ring and i am wondering if a pregnancy may be possible. I am 22 years old, 5 foot 7, about 250 lbs