You are not allowed to move to Canada without a visa. You can visit for up to 6 months at a time without a visa. The Canadian border people will not let you enter if they think you are moving in permanently. They will not let you bring your stuff. If you do, you will be refused entry. If you tell them that you are visiting your boyfriend and plan to marry, you will be refused entry. The proper way to start is to apply to immigrate to Canada. Go to the website and follow th links.
http://www.cic.gc.ca/english/immigrate/index.aspGood luck!!