There is no new immigration reform, at least not yet.
(213) 394-4554 x0 Mr. Shusterman is a former INS Trial Attorney (1976-82) with over 35 years of immigration experience. His response to your question is general in nature, as not all the facts are known to him. You should retain an attorney experienced in immigration law to review all the facts in your case in order to receive advice specific to your case. Mr. Shusterman's statement above does not create an attorney/client relationship.
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As my colleagues have said, there is no immigration reform yet. According to the Senate proposed bill, if you have been here since December 31, 2011, you can qualify if you have paid your taxes and do not have a criminal record (not sure yet what that will entitle).
Do not go back to Canada without having a document that allows you to come back to the U.S. legally, otherwise, and depending on how long you have overstayed, you will have a bar (like a punishment) and you will not be able to get back.
Speak to an attorney as you MIGHT be eligible for a benefit already (i.e. USC spouse, DACA, etc.).