Hello,
Since you had stopped the birth control pills and had unprotected intercourse, so chances of pregnancy are there. To confirm the status of pregnancy, I suggest you to test for pregnancy by a highly sensitive pregnancy test 10 days post ovulation with a sensitive ( 20 - 25 mIU ) pregnancy test. Also then I would suggest you to get your serum HCG levels estimated since this is more specific than urine for pregnancy tests.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
If you engaged in unprotected sexual intercourse during the time in which you were ovulating and have been off of birth control for that amount of time then yes it is possible for you to have gotten pregnant.