There is always a possibility of getting pregnant, but me and my husband used the withdrawal method and never got pregnant and then we started trying but its risky.
Well there is a chance it could be wrong, they say not to start ttc for 3 months after you get off the pill. If you have any questions you should talk to you doctor. Good luck.
You could test today an should get an accurate result if you don't want to spend the money on a test then I would wait a couple days to see if af comes. They say that if you wait till the day of missed period it doesn't matter what time a day you test now if you were to test 5 days before then...