If you are unmarried, your petition will be under F1 category (unmarried son or daughter of U.S. citizens over 21 years old). Currently, that category has a waiting time ranging from 7 to 20 years depending on the country of birth. Assuming you were born in Canada, the September priority date for F1 for that country is September 15, 2006, so that's about 7 years waiting time. Please note that since the priority date for F1 is not current and a visa is not available yet for your petition, you cannot file Form I-485 concurrently with your mother's Form I-130. You should consult an immigration lawyer regarding your case.
Answered on Sep 06th, 2013 at 10:15 AM