A.C.
Yes, there is a chance you are pregnant.
I got pregnant on ortho tricyclen 2 times. I am certain it is because I did not take my pill at the same time every day. Luckily I was married and in a good place in life. The lesson learned is, you cannot be half-assed with birth control. You need to learn what medications can take away its effectiveness, and you need to take it at the same time EVERY day. You need to double up on bc methods (use a condom) if there is any doubt. Otherwise, you have a very good chance of becoming pregnant.